Description of the relationship between width and padding, and the relationship between widthpadding

Description of the relationship between width and padding, and the relationship between widthpadding

Description of the relationship between width and padding:
This topic describes the relationship between width and padding.
The main problem is that the width package does not contain padding. In fact, their relationship is very simple and it is not suitable for adjustment.
Many friends confuse the width attribute with the width of the element.
The width attribute value is not necessarily the actual width of the element. See the following code example:

 

<! DOCTYPE html>  
 
 
From the code above, we can see that width is width, and padding is padding.
 
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