How to set the background of the first-level title: 1. Set it in the first-level title tag, and the syntax style is "

"; 2. Add it in the style tag, and the syntax style is "h1{background:white;}".

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

Generally use CSS styles to set

background is used to set the background color

<h1 style="color:red;font-size:20px;background-color:black"></h1>

or

 <style>
      h1 {
        color: red;
        font-size: 16px;
        background-color: white;
      }
    </style>

Extension:

-

tags define titles.

defines the largest heading.

Defines the smallest heading.

Because the h element has exact semantics, please carefully choose the appropriate tag level to structure the document. Therefore, please do not use title tags to change the font size within the same line. Instead, we should use cascading style sheet definitions to achieve beautiful display effects.

Background shorthand property sets all background properties in one declaration.

You can set the following properties:

• background-color

• ##background-position

• background-size

• background-repeat

• background-origin

• background- clip

• background-attachment

• background-image

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