Box model--border

The distance between elements and other elements can be set using margin. The boundaries can also be divided into upper, right, lower and left. The following code:

div{margin:20px 10px 15px 30px;}

can also be written separately:

div{
   margin-top:20px;
   margin-right:10px;
   margin-bottom:15px;
   margin-left:30px;
}

If the upper, right, lower and left borders are both 10px; you can write like this:

div{ margin:10px;}

If the upper and lower borders are The same is 10px, and the left and right are the same 20px. You can write it like this:

div{ margin:10px 20px;}

To summarize: the difference between padding and margin, padding is in the border, and margin is outside the border.

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>边距</title>
<style type="text/css">
div{
    width:300px;
    height:300px;
         border:1px solid red;       
}
#box1{margin-bottom:30px;}
</style>
</head>
<body>
    <div id="box1">box1</div>
    <div id="box2">box2</div>  
</body>
</html>

Continuing Learning

new file

<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>边距</title> <style type="text/css"> div{ width:300px; height:300px; border:1px solid red; } #box1{margin-bottom:30px;} </style> </head> <body> <div id="box1">box1</div> <div id="box2">box2</div> </body> </html>

submit Reset Code

Automatic operation

Box model--border

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