Understand the h1 h2 h3 h4 tags in HTML

H1 H2 H3 H4 title tags are often used in situations such as the only title, important columns, and important headings in a web page.

1. Look at the h1 title tag under the search engine

For the search engine, it tells the content that different tags represent different levels of importance. If the 1-2 H-shaped tags you use in a web page all contain the same keyword, search engines will also pay special attention to the keywords and content you focus on, but be sure not to abuse them.

2. Html h1 h2 h3 h4 usage HTML code snippet:

<h1 id="最重要的标题H">最重要的标题H1</h1> 
<h2 id="次要栏目或标题-小标题H">次要栏目或标题-小标题H2</h2> 
<h3 id="再次要栏目或分类小标题H">再次要栏目或分类小标题H3</h3> 
<h4 id="文中分类小标题H">文中分类小标题H4</h4>

3. Principles for using html title tags

H1 is best used only once in a web page, such as Used for a unique title for a web page.
H2, H3, and H4 tags can appear multiple times in a web page, but they need to be added at will or excessively.

4. Summary of html h1 h2 h3 h4

You can use h1 h2 h3 h4 tags appropriately in a web page, which will help highlight the key parts of the web page and also help search engine rankings, but remember If you abuse the H1 H2 H3 H4 tags, just use them appropriately. Everything should be used based on user experience. If you need to control the size, background, width, height, and CSS boldness of these title tags, you can redefine their styles through p CSS.

Use CSS style to initialize H1 H2 H3 H4 tag code:
H1,h2,h3,h4{font-size:12px; font-weight:normal}
us The font size is initialized to 12px and the H1 H2 H3 H4 text bold style is removed. The application can be extended according to the example.

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