1、页面
1、文件结构......
...... .......<HTML><HEAD> <title>, <base>, <link>, <isindex>, <meta></HEAD><BODY> <h1 id="正文">正文</h1></BODY></HTML>2、语言字符集信息
基本上所有的网站的网页都有,现在一般都是UTF-8,和GBK2312
bgcolor --- 背景色彩
text --- 非可链接文字的色彩
link --- 可链接文字的色彩
alink --- 正被点击的可链接文字的色彩
vlink --- 已经点击(访问)过的可链接文字的色彩
(颜色RGB16进制)
背景图象
4、页面空白(试了貌似不管用)页面左边的空白
页面上方的空白(天头)
#=margin amount 5、连接无下划线不像链接
默认的是在原来的窗口打开
target="Window_Name" (打开一个新的窗口属性)
下面百度是在新窗口打开
<a href=" target="Window_Name">百度</a>6、标尺线
标尺线的高度:
例如:
标尺线的宽度:
例如:
标尺线的位置:
#=left, right
例如:
标尺线的颜色:
例如:
<!doctype html><html> <head><meta http-equiv="Content-Type" content="text/html;charset=utf-8"> <title>Document</title> </head> <body bgcolor=#ff0033 text=#00ff99 link=#000099 alink=#330099 vlink=##66cc33> <h1 id="This-nbsp-is-nbsp-a-nbsp-heading">This is a heading</h1><h2 id="This-nbsp-is-nbsp-a-nbsp-heading">This is a heading</h2><h3 id="This-nbsp-is-nbsp-a-nbsp-heading">This is a heading</h3><a href="http://www.baidu.com">百度</a><br/><a name="http://www.baidu.com">百度1</a><hr><hr size=20><hr width=50><hr width=50%><hr width=50%><hr width=50%><hr noshade><hr color=#000000 > </body></html>
2、字体
1、标题字体字体由大到小
....#=1,2,3,4,5,6,7
加粗:....
斜体:.....
下划线:....
打字机文本:...
上标注:
下标注:
删除文本定义:
<!doctype html><html> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <b>加粗</b><hr> <i>斜体</i><hr/> <u>下划线</u><hr/> <tt>打字机文本</tt><hr/> <sup>上标注</sup><hr> <sub>下标注</sub><hr> <s>可定义删除文本</s><hr> <strike>可定义删除文本</strike><hr> </body></html>4、逻辑字体
强调字体倾斜:
强调字体加粗:
用于表示计算机源代码或者其他机器可以阅读的文本内容:
短语标签:
键盘文本:
变量的名称
对特殊术语或短语的定义
注释作用:
小型文本:
大字号:
<!doctype html><html> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <b>加粗</b><hr> <i>斜体</i><hr/> <u>下划线</u><hr/> <tt>打字机文本</tt><hr/> <sup>上标注</sup><hr> <sub>下标注</sub><hr> <s>可定义删除文本</s><hr> <strike>可定义删除文本</strike><hr> <h1 id="逻辑字体">逻辑字体</h1> <em>强调字体倾斜</em><hr> <strong>强调字体加粗</strong><hr> <code>用于表示计算机源代码或者其他机器可以阅读的文本内容</code><hr> <samp>短语标签</samp><hr> <kdd>键盘文本</kdd><hr> <var>变量的名称</var><hr> <dfn>对特殊术语或短语的定义</dfn><hr> <cite>注释作用</cite><hr> <small>小型文本</small><hr> <big>大字号</big> </body></html>
物理风格直接指定字体的“样式”(如粗、斜、下划线);
逻辑风格则是指定文本的“作用”(如示例文字、缩小文字)。
就像去餐馆吃饭,点菜的时候,A告诉炒菜的师傅“炒得多一点”,这是物理风格,直接指定样式;B告诉炒菜的师傅“炒得辣一点”,这是逻辑风格,指定作用。
5、字体颜色.....
6、客户端字体
7、字符实体
& &< <> >" "
3、文字布局
1、行的控制空行:
换行:
不换行
......)
...
#=left, center, right3、文字的分区显示
无序列表:
- .........
有序类表:
- ..........
定义列表:
- ......
- .....
定制表中的标记:
定制有序列表表中的序号:
5、预格式化文本
.........
6、块引用:
.......7、闪烁
<!doctype html><html> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body><h1 id="中间">中间</h1><div>大家愚人节快乐</div><div>大家愚人节快乐</div><div>大家愚人节快乐</div><blink>块引用</blink><div>Her Song:<blockquote>When I was young, I listened to the radio waiting for my favorite songs....</blockquote></div><h1 id="定制列表元素">定制列表元素</h1><ul><li type=disc>ONE<li type=circle>TWO<li type=square>THREE</ul><h1 id="定制列表-h-dl-dt-Today-dd-Today-nbsp-is-nbsp-yesterday-dt-Tomorrow-dd-Tomorrow-nbsp-is-nbsp-today-dl-h-有序列表">定制列表</h1<dl><dt>Today<dd>Today is yesterday.<dt>Tomorrow<dd>Tomorrow is today.</dl><h1>有序列表</h1><ol><li>Today<li>Tommorow</ol><h1>无序列表</h1<ul><li>Today<li>Tommorow</ul> </body></html>
4、图像
1、插入图像基本语法: src对应图片的地址,alt图片的提示内容
#=top,middle,bottom 分别为上、中、下
#=value
5、表格
1、基本语法:默认的不带边框,
带边框的表格:
跨多行的表元 |
3、表格尺寸设置 边框尺寸设置:
|
---|

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.


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