The difference between width:100%; and width:auto
This time I will bring you the difference between width:100%; and width:auto. What are the precautions when using width:100%; and width:auto? The following is a practical case. Get up and take a look.
<p> <p>1111</p> </p> p{ width:980px;<br> background-color: #ccc;<br> height:300px; } p{ width:100%;<br> /*width:auto;*/ padding:10px;<br> background-color:#000;<br> }
If the width of p is: 100%, it means that the width of p will be 980px, which will fill the p area, and then it has padding, so it will exceed p.
And when width:auto, it is the overall width (including width, margin, padding, border) equal to the parent width (width, excluding the parent's margin, padding, border) , so if padding already takes up 10px of space on the left and right, then the value given by width is 960px.
But whether it is width:100% or auto, the calculation reference is the parent content area width value, not the total width value.
I believe you have mastered it after reading the case in this article Method, for more exciting information, please pay attention to other related articles on the php Chinese website!
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The above is the detailed content of The difference between width:100%; and width:auto. For more information, please follow other related articles on the PHP Chinese website!

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