Can the padding attribute in css have a negative value? Detailed explanation of padding attribute in css-CSS Tutorial-php.cn

Can the padding attribute in css have a negative value? Detailed explanation of padding attribute in css

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Release： 2019-05-22 09:20:20

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Detailed introduction to the padding attribute in the css box model, and a mistake often made by novices, the padding attribute can really write negative values. The answer is at the end of the article. Now let us look at this article together

Can the padding attribute in css have a negative value? Detailed explanation of padding attribute in css

First we introduce the first question:# Can the padding attribute in

##css

be a negative value? The answer is easy. We won’t introduce it first. There is an explanation on the use of negative values of the padding attribute at the end of the article.

Now let’s look at the usage of the padding attribute in css:

padding: shorthand attribute sets all padding attributes (auto/length length value/ %)

This is an introduction to padding. Let’s look at an example to learn more about it:

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>PHP中文网</title>
<style type="text/css">
table{padding-top:20px;padding-right:50px;padding-bottom:100px;padding-left:20px;border:double;}
</style>
</head>
<body>
<table width="200px"; height="150px">
<tr><td>123</td><td>456</td></tr>
<tr><td>789</td><td>987</td></tr>
</table>
</body>
</html>

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The above code combines four Each attribute has been written. Although it is very messy, we still need to see how the code displays in the browser:

Can the padding attribute in css have a negative value? Detailed explanation of padding attribute in css (I want to see more CSS style recommendations Go to the PHP Chinese website

css User Manual

column to learn) Is the effect very obvious? Let’s take a look at the code explanation:

<style type="text/css">
table{padding-top:20px;padding-right:50px;padding-bottom:-300px;padding-left:20px;border:double;}
</style>

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Let’s be a little exaggerated, let’s take a value of minus 300, let’s take a look at the effect:

Can the padding attribute in css have a negative value? Detailed explanation of padding attribute in css After testing , and found that the effect was almost nonexistent, it was just equivalent to canceling the padding-bottom attribute.

It can be seen that padding in CSS cannot have negative values. If it does, it is equivalent to canceling that attribute.

Okay, the above is an article about the usage of padding in CSS styles. If you want to learn more, go to the

css Learning Manual

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