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html5 tag layout tutorial

巴扎黑

Jun 27, 2017 am 10:23 AM

h5headerhtml5

html5 header element tag html5New tag element

, learn through the html header basic tutorial and also serve as header css layout skills

Before the HTML5 version, it was customary to use div tags to layout web pages. In HTML5, a new header tag element is added based on the DIV tag. Also called "

" header tag. In the past, we often divided web pages into header, content, and bottom in div css layout. For large structures, we often use divs with ids for layout. The header is often laid out using or . The characteristics are different from the traditional DIV layout. There is no need for div. tag, but add a new element tag.

It should be recognized by everyone that "header" is a commonly used name in html layout, so a new header tag element is added in HTML5. You can understand why the header is added as a label element in html5.

In addition to using the header tag directly, you can also set class or id to the header.

The header tag element is used the same as div. There is a beginning and a closing.

Grammar:

Content

1. Don’t give id or class directly

2. Set id

Header content area

3. Set class

Header content area

4. Features: Like the DIV tag element, it can be used multiple times, and id or class can be used to set different styles in different places.

3. Compatibility - TOP

Because the header tag is a new tag element in HTML5, it is not supported by older versions of browsers. It requires IE9+ or above browsers, the latest Google Chrome and other browsers. support. Of course, domestic browsers such as 360 Browser, Baidu Browser, and Aoyou Browser all use the IE kernel that comes with the system, so domestic browsers are actually the same version as the IE version that comes with your system, so you IE BrowserIn IE9 or above, it is naturally compatible with the new tag elements of HTML5.

4. Comparison case of old and new DIV layout - TOP

Observe and master the application of header by comparing DIV+CSS layout and HTML5+CSS layout.

1. DIVCSS5 instance HTML5+CSS complete code

<!DOCTYPE html>
<html>
 <head> 
  <meta charset="utf-8" /> 
  <title>html5 Header标签实例 DIVCSS5</title> 
  <style> /* 传统布局CSS */ #header{ width:300px; height:40px; background:#CCC}  /* HTML5布局样式 */ header{ width:400px; height:70px; color:#F00; background:#F5F5F5} .color-000{ color:#000; background:#666} </style> 
 </head> 
 <body> 
  <div id="header">
   我在传统div布局中
  </div> 
  <header>
   我在传统div布局中,必须在支持HTML5浏览器才能看到效果， 建议谷歌浏览器测试观察效果
  </header> 
  <header class="color-000">
   我颜色为黑色,背景为#666
  </header>   
 </body>
</html>

2. Effect screenshot

div and header layout effect screenshot

html5 <header> tag layout tutorial

DIVCSS5 Special tip: The code is screenshotted in DW software, and the effects are rendered in PS on Google Chrome (supports HTML5) browser. Ordinary IE6-IE8 do not support HTML5 and cannot see the HTML5 layout effect. You need IE9 and above browsers to see the layout effect.

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