In CSS3, border is a shorthand attribute used to set the border of an element; the attribute values of this attribute are used to set the width, style and color of the element border in order, and the syntax is "border: border width border Style border color;" is allowed if a certain value is not set.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
The border shorthand attribute sets all border attributes in one statement.
You can set the following properties in order:
border-width specifies the width of the border.
border-style Specifies the style of the border.
border-color specifies the color of the border.
If you do not set one of the values, there will be no problem. For example, border:solid #ff0000; is also allowed.
The example is as follows;
<html>
<head>
<style type="text/css">
p
{
border: medium double rgb(250,0,255)
}
</style>
</head>
<body>
<p>Some text</p>
</body>
</html>Output result:
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