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In CSS, you can use the border-width attribute to set the width of the border. The syntax format is "border-width: keyword | value with length unit;"; among them, the keyword can be thin (thin) border), medium (medium border), thick (thick border).
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
css sets the width of the border
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
p.one
{
border-style:solid;
border-width:5px;
}
p.two
{
border-style:solid;
border-width:medium;
}
p.three
{
border-style:solid;
border-width:thick;
}
</style>
</head>
<body>
<p class="one">一些文本。</p>
<p class="two">一些文本。</p>
<p class="three">一些文本。</p>
</body>
</html>Rendering:
Description:
The "border-width" attribute will not work if used alone. You must first use the "border-style" attribute to set the border.
css border-width property
The border-width property sets the width of the four borders of an element.
Attribute value:
| Value | Description |
|---|---|
| thin | Define thin borders. |
| medium | Default. Define a medium border. |
| thick | Define a thick border. |
| length | Allows you to customize the width of the border. |
The border-width attribute can have one to four values.
Example:
border-width:thin medium thick 10px;
The upper border is a thin border
The right border is a medium border
The lower border is a thick border
The left border is a 10px wide border
border-width:thin medium thick;
The upper border It’s a thin border
The right and left borders are medium borders
The bottom border is a thick border
border-width:thin medium;
The upper and lower borders are thin borders
The right and left borders are medium borders
border-width:thin;
All 4 borders are thin borders
(Learning video sharing: css video tutorial)
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