Method: 1. Use the border-style attribute to set different border line styles through different attribute values, such as "dotted" dotted, "solid" solid line, and "double" double line; 2 . Use the border-image attribute to add different background images to the border to set different border line styles.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
Method 1: Use the border-style attribute
The border-style attribute is used to set the style of the element border
Attribute value:
| Value | Description |
|---|---|
| none | Defines no border. |
| hidden | Same as "none". Except when applied to tables, for which hidden is used to resolve border conflicts. |
| dotted | Define dotted border. Renders as a solid line in most browsers. |
| dashed | Define dashed line. Renders as a solid line in most browsers. |
| solid | Define a solid line. |
| double | Define double line. The width of the double line is equal to the value of border-width. |
| groove | Define the 3D groove border. The effect depends on the value of border-color. |
| ridge | Define the 3D ridge border. The effect depends on the value of border-color. |
| inset | Define the 3D inset border. The effect depends on the value of border-color. |
| outset | Define the 3D outset border. The effect depends on the value of border-color. |
| inherit | Specifies that the border style should be inherited from the parent element. |
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
div {
margin: 10px 0;
}
div.dotted {
border-style: dotted
}
div.dashed {
border-style: dashed
}
div.solid {
border-style: solid
}
div.double {
border-style: double
}
div.groove {
border-style: groove
}
div.ridge {
border-style: ridge
}
div.inset {
border-style: inset
}
div.outset {
border-style: outset
}
</style>
</head>
<body>
<div class="dotted">点状边框</div>
<div class="dashed">虚线边框</div>
<div class="solid">实线边框</div>
<div class="double">双线边框</div>
<div class="groove">3D 凹槽边框</div>
<div class="ridge">3D 垄状边框</div>
<div class="inset">3D inset 边框</div>
<div class="outset">3D outset 边框</div>
</body>
</html>Rendering:
Method 2 : Use the border-image attribute
The border-image attribute can add a background image to the border
Example:
Use the 90px one shown in the picture ×90px image as the background image of the border.
Code example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
div
{
width:210px;
height:150px;
border:30px solid gray;
border-image:url(img/border.png) 30 repeat;
}
</style>
</head>
<body>
<div></div>
</body>
</html>The browser preview is as shown below.
(Learning video sharing: css video tutorial)
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