htmlHow to set the border: 1. Set the border width through the "border-width" attribute; 2. Set the border style through the "border-style" attribute; 3. Set the border color through the "border-color" attribute.
The operating environment of this article: Windows7 system, HTML5&&CSS3 version, DELL G3 computer
HTML Set borders for elements
Attribute: border, which can be the top, right, bottom and left borders of the element (the order is very important)
There are three values:
1.border-width: border width, The default is 3px, which can be set manually. Take the pixel value
2.border-style: border style, required. Desirable: solid (solid border) dashed (dashed border) dotted (dotted border) double (double border)
3.border-color: border color, take the color value, the default is black
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style media="screen">
h1{
width:300px;
height:150px;
}
.c1{
/*边框宽度与颜色有默认值，样式必须设置*/
border:solid;
}
.c2{
border:5px solid red;
}
.c3{
border:5px dashed green;
}
.c4{
border:5px dotted blue;
}
.c5{
border:5px double orange;
}
</style>
</head>
<body>
<h1 class="c1"></h1>
<h1 class="c2"></h1>
<h1 class="c3"></h1>
<h1 class="c4"></h1>
<h1 class="c5"></h1>
</body>
</html>The effect is as follows:
Recommended learning: "HTML video tutorial" "css video tutorial"
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