CSS 轮廓宽度


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CSS 轮廓宽度

outline-width 属性指定轮廓的宽度, 并且可以具有以下值之一:

  • (通常为 1 像素)

  • (通常为 3px)

  • (通常为 5px)

  • 特定尺寸(以 px、pt、cm、em 等为单位)

以下示例显示了一些具有不同宽度的轮廓:

A thin outline.

A medium outline.

A thick outline.

A 4px thick outline.

例子

 p.ex1
{
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
   
outline-width: thin;
}
p.ex2
{
  border: 1px solid black;
   
outline-style: solid;
  outline-color: red;
  outline-width: medium;
}
p.ex3
{
  border: 1px solid black;
   
outline-style: solid;
  outline-color: red;
  outline-width: thick;
}

p.ex4
{
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
   
outline-width: 4px;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
p.ex1 {
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
  outline-width: thin;
}

p.ex2 {
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
  outline-width: medium;
}

p.ex3 {
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
  outline-width: thick;
}

p.ex4 {
  border: 1px solid black;
  outline-style: solid;
  outline-color: red;
  outline-width: 4px;
}
</style>
</head>
<body>

<h2>The outline-width Property</h2>

<p class="ex1">A thin outline.</p>
<p class="ex2">A medium outline.</p>
<p class="ex3">A thick outline.</p>
<p class="ex4">A 4px thick outline.</p>

</body>
</html>