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A detailed explanation of the Box Model in CSS and a detailed explanation of the CSS Box Model

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Author: User
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A detailed explanation of the Box Model in CSS and a detailed explanation of the CSS Box Model

Many people are confused about the box model. The following uses a simple code to analyze the structure of the box model!

For easy viewing! Draw a table in the first div and set its size to the same size as the div content! Set the margin and padding attributes of the body to 0px;

This example uses the CSS style in the row!

The Code is as follows:

12345678910111213141516171819202122 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><Title> Box Model </title> <body><div>  <div>    <table width="900px" height="100px" border="1" cellspacing="0" cellpadding="0" bordercolor="#FF0000">      <tr >        <td>      </tr>    </table>  </div>  <div>  <div>  <div></div></body>

Open the ruler!

What have you found?

 

The analysis is as follows:

 

 

Display Effect:

 

 

Other settings of the table are fixed, that is, the content size will not change, but the change is only the location!

Border: it is a border that expands outward and can be added to it.Color Attribute;

Margin: There is no color attribute for outward expansion, so we can see that the expanded color is an external color. In this example, It is colorless!

Padding: It is filled inwards and has no color attribute. The displayed color is the color set for the internal content!

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