In CSS, you can use the padding attribute to set the padding. You only need to set "padding: value unit | percentage value" to the element. The padding property sets the width of all padding on an element, or sets the width of padding on each side. The padding attribute does not allow negative padding values to be specified.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
Let’s take a look at how to set padding (padding):
Our padding is one of the css box models, so now let’s take a look at the padding How is it set up?
padding: is a shorthand attribute that can set all padding attributes in a declaration.
Use the padding attribute alone to change the top, bottom, left, and right padding.
Possible values:
length: Defines a fixed padding (pixels, pt, em, etc.)
%: Defines a padding using a percentage value
Usage:
padding-left sets the padding spacing from the left side of the object
div{padding-left:5px}The padding spacing from the left side within the object is 5px
padding-right sets the padding spacing on the right side of the object
div{padding-right:5px}The padding spacing on the right side of the object is 5px
padding-top sets the distance on the object The top margin padding interval
div{padding-top:5px}The distance between the top padding within the object and the top padding distance is 5px
padding-bottom sets the distance between the object and the bottom padding
div{padding-bottom:5px}The inner distance between the object and the bottom padding spacing is 5px
Description
Retrieve or set the patch margins on the four sides of the object.
If all four parameter values are provided, the four sides will be applied in the order of top-right-bottom-left.
If only one is provided, it will be used for all four edges.
If two are provided, the first one is used for up-down, and the second one is used for left-right.
If three are provided, the first is for up, the second is for left-right, and the third is for bottom.
To use this attribute on an inline object, you must first set the height or width attribute of the object, or set the position attribute to absolute.
The value of Padding cannot be negative.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
.css{
width:350px;
height:80px;
border:1px solid #00F;
padding-left:40px;
padding-right:40px;
padding-top:40px;
padding-bottom:40px;
/* 可以合起来写成padding:40px; */
}
</style>
</head>
<body>
<div class="css">padding用法</div>
</body>
</html>Rendering:
Recommended learning:css video tutorial
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