There are many tags in html, and each tag has different uses. The following article on php Chinese website will summarize the commonly used tags in html. Each tag will be followed by an example. Without further ado, let us Let’s take a look at the details.
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Font tag, used to modify the text style in the display effecttextsize: Control the font size. Minimum 1 ~ maximum 7. If the setting range is not between 1 and 7, the setting is invalid color: Control the font color. Use English settings (for example: red, blue...) face: Control the font type. Only font types that exist in the system font library can be setExample:
<body> 东边日出<font color="green" size="50" face="宋体">西边雨</font> </body>
Effect:
Example:
竹枝词二首·其一<br/> 刘禹锡<br/><br/> 杨柳青青江水平，闻郎江上踏歌声。<br/> 东边日出西边雨，道是无晴却有晴。
Effect:
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Paragraph tag is used to divide paragraphs in the display effect. And automatically add blank lines before and after the paragraphalign: The alignment of the paragraph content
The default is left, the content is left
Right
Center Centered
Example:<p align="center">黄鹤楼送孟浩然之广陵</p>
<p >故人西辞黄鹤楼，</p><p align="right">烟花三月下扬州。</p>
<p>孤帆远影碧空尽，</p><p align="right">唯见长江天际流。</p>
Title tag, used to divide titles in the display effect
Among them,is the largest,
Example
:<h1 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h1> <h2 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h2> <h3 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h3> <h4 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h4> <h5 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h5> <h6 id="念奴娇-赤壁怀古">念奴娇·赤壁怀古</h6>Effect:
Multiple spaces in the HTML source code will eventually be merged into one in the effect.
Space symbol, used to display a blank position in the effectExample:
php 中文网</br> php 中文网Effect:
are used to annotate the HTML source code and are not displayed in the HTML effect.
can only be seen in the source code, and there is no format in the page display effect:example :
<!--html标签-->Effect: It will not be displayed in the HTML effect display, and can only be seen in the source code
Picture tag
用于在页面效果中展示一张图片。 src：指明图片的路径。（必有属性） 图片路径的写法： ①内网路径： 绝对路径：文件在硬盘上的具体位置。【不建议使用】 例如：C:\ JavaWeb001_html\img\c_1.jpg 相对路径：从引入者所在目录出发。【建议使用相对路径】 例如：../img/c_1.jpg ../表示上一层目录 ./表示当前目录 互联网路径： 必须前面加上http:// width：图片宽度 height：图片的高度 宽度和高度的设置： 默认单位是px，像素。例如：width=”400” 其实设置的是 width=”400px”。固定设置方式 百分比设置。例如：width=”50%”。 是父标签的百分比。 动态改变的。 示例： 列表标签 无序列表标签，用于在效果中定义一个无序列表
列表条目项标签，用于在效果中定义一个列表的条目 有序列表标签，用于在效果中定义一个有序列表 示例： 效果： 示例： 效果： 超链接标签 超链接标签，用于在效果中定义一个可以点击跳转的链接 href：超链接跳转的路径 (必有属性) 内网本机路径：相对路径和绝对路径 互联网路径：http://地址 本页：默认跳转到本页 超链接正常工作：①a标签中必须有内容 ②a标签必须有href属性 示例： 注意： ①a标签内容体，不仅仅是文字，也可以是其他内容，例如图片 ②a标签的href属性，不仅仅可以链接到html上，也可以链接到其他文件上，例如图片 示例： 示例： 表格标签 表格标签，用于在效果中定义一个表格 border：设置表格的边框粗细 width：设置表格的宽度 表格的行标签，用于在效果中定义一个表格行 表格的单元格标签，用于在效果中定义一个表格行中的单元格 表格的书写顺序： 步骤1：定义一个表格 
<img src="/static/imghwm/default1.png" data-src="../c_1.jpg" class="lazy" style="max-width:90%" style="max-width:90%"/ alt="What tags does HTML have? A complete list of commonly used HTML tags" >
<img src="/static/imghwm/default1.png" data-src="../c_2.jpg" class="lazy" style="max-width:90%"/ alt="What tags does HTML have? A complete list of commonly used HTML tags" >
<ul>
<li>古诗</li>
<li>古词</li>
<li>诗歌</li>
</ul>
<ol>
<li>古诗</li>
<li>古词</li>
<li>诗歌</li>
</ol>
<a herf="http://www.php.cn/">php中文网</a>
<a herf="demo html">demo</a>
<a herf="demo html">
<img src="/static/imghwm/default1.png" data-src="../img/c_1.jpg" class="lazy" / alt="What tags does HTML have? A complete list of commonly used HTML tags" >
</a>
<a herf="../img/c_1.jpg" />链接到一张图片</a>
步骤2：定义表格中的一行
步骤3：在表格一行中定义单元格
示例：
<table> <tr> <td>姓名</td> <td>数学</td> </tr> <tr> <td>A</td> <td>100</td> </tr> </table>
效果：
表格的表头单元格标签，用于在效果中定义一个表格行中的表头单元格
示例：
<table boder="1px" width="100%"> <tr> <th>姓名</th> <th>数学</th> </tr> <tr> <td>A</td> <td>100</td> </tr> </table>
效果：
单元格合并
colspan：跨列合并单元格
rowspan：跨行合并单元格
合并步骤：
确定合并哪几个单元格，确定是跨列合并还是跨行合并
在第一个出现的单元格上书写 合并单元格属性
合并几个单元格，属性值就书写几
被合并的单元格必须删掉
示例：
<tr> <td conspan="2">1</td> <td>3</td> <td>4</td> </tr>
示例：
<tr><td rowspan="2">6</td> <td>7</td> <td>8</td> </tr> <tr> <td>12</td> <td>15</td> </tr>
示例：
<tr> <td conspan="2" rowspan="2">8</td> <td>11</td> </tr> <tr> <td>16</td> </tr>
块标签
行级的块标签，用于在效果中 一行上定义一个块，进行内容显示。
span有多少内容，就会占用多大空间。
Span不会自动换行
适用于少量数据展示
示例：
<span>哈哈哈哈哈</span> <span>呵呵呵呵呵</span>
效果：
块级的块标签，用于在效果中 定义一块，默认占满一行，进行内容的显示
默认占满一行
会自动换行
适用于大量数据展示
示例：
<div>哈哈哈哈哈</div> <div>呵呵呵呵呵</div>
效果：
框架标签
框架标签：
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