HTML5第二节 - 追梦-dream-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

HTML5第二节 - 追梦-dream

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

May 21, 2016 am 08:35 AM

第二回合：HTML5的新特性

与之前的HTML4.01相比，HTML5增加了非常多的改变：

① 新的语义元素：

、

② 新的元素特性：增加新的元素属性、表单元素、验证功能等内容。

③ 多媒体：增加

④ 2D/3D 绘图：增加

⑤ 存储：增加在线、离线存储功能。

⑥ 连通性：增加客户端与服务器交互的两个内容：Web Sockets(客户端与服务器持久连接)和Server-sent events(服务器推送数据)等。

⑦ 集成：提供Web Workers、History API、requestAnimationFrame、地理位置等强大的功能。

⑧ 设备访问：提供对摄像头、移动设备的支持。

⑨ CSS3样式：提供了新的背景样式特性、动画、边框等样式。

下面我们用实例来说明下各个标签的使用以及h5与c3的配合。

html代码如下：

<span style="color: #0000ff;"><span style="color: #ff00ff;">DOCTYPE html</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"><span style="color: #800000;">html</span><span style="color: #0000ff;">></span>

<span style="color: #0000ff;"><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">meta </span><span style="color: #ff0000;">charset</span><span style="color: #0000ff;">="utf-8"</span> <span style="color: #0000ff;">/></span>
  <span style="color: #0000ff;"><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>HTML5<span style="color: #0000ff;"></span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">link </span><span style="color: #ff0000;">rel</span><span style="color: #0000ff;">="stylesheet"</span><span style="color: #ff0000;"> href</span><span style="color: #0000ff;">="html5.css"</span><span style="color: #0000ff;">></span>

<span style="color: #0000ff;"></span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>

<span style="color: #0000ff;"><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>

   <span style="color: #0000ff;"><span style="color: #800000;">header </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="show"</span><span style="color: #0000ff;">></span>
     <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>
     <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Subtitle<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>
 
   <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 头部结束 </span><span style="color: #008000;">--></span>

    <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="container"</span><span style="color: #0000ff;">></span>

        <span style="color: #0000ff;"><span style="color: #800000;">nav</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>Nav<span style="color: #0000ff;"></span><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>HTML5<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>CSS3<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>Javascript<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">nav</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 导航链接部分 </span><span style="color: #008000;">--></span>

        <span style="color: #0000ff;"><span style="color: #800000;">section</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">article</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">header</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Article Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义头部 </span><span style="color: #008000;">--></span>
                <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>Lorem ipsum dolor HTML5 nunc aut nunquam sit amet, consectetur adipiscing elit. Vivamus at est eros, vel fringilla urna.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>Per inceptos himenaeos. Quisque feugiat, justo at vehicula pellentesque, turpis lorem dictum nunc.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Article Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义尾部 </span><span style="color: #008000;">--></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">article</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义文章 </span><span style="color: #008000;">--></span>
            <span style="color: #0000ff;"><span style="color: #800000;">article</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">header</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Article Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>HTML5: "Lorem ipsum dolor nunc aut nunquam sit amet, consectetur adipiscing elit. Vivamus at est eros, vel fringilla urna. Pellentesque odio<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Article Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">article</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">section</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义文档中的节 </span><span style="color: #008000;">--></span>

        <span style="color: #0000ff;"><span style="color: #800000;">aside</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>Aside<span style="color: #0000ff;"></span><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>do you love this case? if you want make friends with me ,you can add my qq: 1125911451,thank you for your join.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">img </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="lian.jpg"</span><span style="color: #ff0000;"> alt</span><span style="color: #0000ff;">=""</span><span style="color: #ff0000;"> width</span><span style="color: #0000ff;">="220"</span><span style="color: #ff0000;"> height</span><span style="color: #0000ff;">="250"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">aside</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义侧边栏目 </span><span style="color: #008000;">--></span>
        <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>

<span style="color: #0000ff;"></span><span style="color: #800000;">html</span><span style="color: #0000ff;">><br><br>css代码如下：<br></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

<span style="color: #800000;">body </span>{<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;">#CCCCCC</span>;<span style="color: #ff0000;">
    font-family</span>:<span style="color: #0000ff;">Geneva,Arial,Helvetica,sans-serif</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 0px auto</span>;<span style="color: #ff0000;">
    max-width</span>:<span style="color: #0000ff;">900px</span>;<span style="color: #ff0000;">
    border</span>:<span style="color: #0000ff;">solid</span>;<span style="color: #ff0000;">
    border-color</span>:<span style="color: #0000ff;">#FFFFFF</span>;
}<span style="color: #800000;">

header </span>{<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;">#FFFFFF</span>;<span style="color: #ff0000;">
    text-align</span>:<span style="color: #0000ff;">center</span>;
}<span style="color: #800000;">

header h2 </span>{<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 0px</span>;
}<span style="color: #800000;">

h1 </span>{<span style="color: #ff0000;">
    font-size</span>:<span style="color: #0000ff;"> 72px</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 0px</span>;
}<span style="color: #800000;">

h2 </span>{<span style="color: #ff0000;">
    font-size</span>:<span style="color: #0000ff;"> 24px</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 0px</span>;<span style="color: #ff0000;">
    text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> #F47D31</span>;
}<span style="color: #800000;">

h3 </span>{<span style="color: #ff0000;">
    font-size</span>:<span style="color: #0000ff;"> 18px</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 0px</span>;<span style="color: #ff0000;">
    text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> #F47D31</span>;
}<span style="color: #800000;">

h4 </span>{<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #fff</span>;<span style="color: #ff0000;">
    -webkit-box-shadow</span>:<span style="color: #0000ff;"> 2px 2px 20px #888</span>;<span style="color: #ff0000;">
    -webkit-transform</span>:<span style="color: #0000ff;"> rotate(-45deg)</span>;<span style="color: #ff0000;">
    -moz-box-shadow</span>:<span style="color: #0000ff;"> 2px 2px 20px #888</span>;<span style="color: #ff0000;">
    -moz-transform</span>:<span style="color: #0000ff;"> rotate(-45deg)</span>;<span style="color: #ff0000;">
    position</span>:<span style="color: #0000ff;"> absolute</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 0px 150px</span>;<span style="color: #ff0000;">
    top</span>:<span style="color: #0000ff;"> 50px</span>;<span style="color: #ff0000;">
    left</span>:<span style="color: #0000ff;"> -120px</span>;<span style="color: #ff0000;">
    text-align</span>:<span style="color: #0000ff;">center</span>;
    
}<span style="color: #800000;">

nav </span>{<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;">
    width</span>:<span style="color: #0000ff;">25%</span>;<span style="color: #ff0000;">
    float</span>:<span style="color: #0000ff;">left</span>;
}<span style="color: #800000;">

nav a:link, nav a:visited </span>{<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;">
    border-bottom</span>:<span style="color: #0000ff;"> 3px solid #fff</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    text-decoration</span>:<span style="color: #0000ff;"> none</span>;<span style="color: #ff0000;">
    font-weight</span>:<span style="color: #0000ff;"> bold</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 5px</span>;
}<span style="color: #800000;">

nav a:hover </span>{<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> white</span>;<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #F47D31</span>;
}<span style="color: #800000;">

nav h3 </span>{<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> white</span>;
}<span style="color: #800000;">

#container </span>{<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #888</span>;
}<span style="color: #800000;">

section </span>{<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;">
    width</span>:<span style="color: #0000ff;">50%</span>;<span style="color: #ff0000;">
    float</span>:<span style="color: #0000ff;">left</span>;
}<span style="color: #800000;">

article </span>{<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #eee</span>;<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    border-radius</span>:<span style="color: #0000ff;"> 10px</span>;
}<span style="color: #800000;">

article header </span>{<span style="color: #ff0000;">
    -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 5px</span>;

}<span style="color: #800000;">

article footer </span>{<span style="color: #ff0000;">
    -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 5px</span>;
}<span style="color: #800000;">

article h1 </span>{<span style="color: #ff0000;">
    font-size</span>:<span style="color: #0000ff;"> 18px</span>;
}<span style="color: #800000;">

    
aside </span>{<span style="color: #ff0000;">
    display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;">
    width</span>:<span style="color: #0000ff;">25%</span>;<span style="color: #ff0000;">
    float</span>:<span style="color: #0000ff;">left</span>;
}<span style="color: #800000;">

aside h3 </span>{<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> white</span>;
}<span style="color: #800000;">

aside p </span>{<span style="color: #ff0000;">
    margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> white</span>;<span style="color: #ff0000;">
    font-weight</span>:<span style="color: #0000ff;"> bold</span>;<span style="color: #ff0000;">
    font-style</span>:<span style="color: #0000ff;"> italic</span>;
}<span style="color: #800000;">
    

footer </span>{<span style="color: #ff0000;">
    clear</span>:<span style="color: #0000ff;"> both</span>;<span style="color: #ff0000;">    
    display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;">
    background-color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;">#FFFFFF</span>;<span style="color: #ff0000;">
    text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;">
    padding</span>:<span style="color: #0000ff;"> 15px</span>;
}<span style="color: #800000;">

footer h2 </span>{<span style="color: #ff0000;">
    font-size</span>:<span style="color: #0000ff;"> 14px</span>;<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> white</span>;
}


<span style="color: #008000;">/*</span><span style="color: #008000;"> links </span><span style="color: #008000;">*/</span><span style="color: #800000;">
a </span>{<span style="color: #ff0000;">
    color</span>:<span style="color: #0000ff;"> #F47D31</span>;
}<span style="color: #800000;">

a:hover </span>{<span style="color: #ff0000;">
    text-decoration</span>:<span style="color: #0000ff;"> underline</span>;
}<span style="color: #800000;">
.show </span>{<span style="color: #ff0000;">
           
          
            -webkit-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;">
            -moz-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;">
            -o-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;">
            animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;">
            -webkit-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;">
            -ms-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;">
            -o-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;">
            transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;
        }<span style="color: #008000;">/*</span><span style="color: #008000;">调用动画</span><span style="color: #008000;">*/</span><span style="color: #800000;">
 @-webkit-keyframes show </span>{<span style="color: #ff0000;">
            0% {
                background</span>:<span style="color: #0000ff;"> #f47d31</span>;<span style="color: #ff0000;">
                color</span>:<span style="color: #0000ff;">  white</span>;
            }<span style="color: #800000;">

            50% </span>{<span style="color: #ff0000;">
                background</span>:<span style="color: #0000ff;"> #e0a014</span>;<span style="color: #ff0000;">
                color</span>:<span style="color: #0000ff;"> #a3d9ff</span>;
            }<span style="color: #800000;">

            100% </span>{<span style="color: #ff0000;">
                background</span>:<span style="color: #0000ff;"> purple</span>;<span style="color: #ff0000;">
                color</span>:<span style="color: #0000ff;"> pink</span>;
            }<span style="color: #800000;">
        }</span><span style="color: #008000;">/*</span><span style="color: #008000;">定义动画</span><span style="color: #008000;">*/<br>效果图如下图所示<img src="/static/imghwm/default1.png" data-src="http://images2015.cnblogs.com/blog/908680/201604/908680-20160407143653765-667660369.png" class="lazy" alt=""></span>

我相信现在大家对h5已经产生了浓厚的兴趣，那么现在可以自己动手去撸代码，用h5开发页面，在下一节里我将继续为大家讲解h5的应用

<span style="color: #0000ff;"> </span>

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?Mar 04, 2025 pm 12:32 PM

The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,

How to efficiently add stroke effects to PNG images on web pages?Mar 04, 2025 pm 02:39 PM

This article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect

How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PM

The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PM

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PM

Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PM

The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PM

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PM

This article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Repo: How To Revive Teammates

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hello Kitty Island Adventure: How To Get Giant Seeds

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

How Long Does It Take To Beat Split Fiction?

4 weeks agoByDDD

R.E.P.O. Save File Location: Where Is It & How to Protect It?

4 weeks agoByDDD

Hot Tools

Dreamweaver Mac version

Visual web development tools

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.