After inserting the form form, a row is often empty on the upper and lower form, which makes the layout of the web page very ugly. You only need to use css to control the form margin=0 to solve this problem. I wonder if you have noticed when creating a web page. After inserting the form form, a row is often empty on the upper and lower form, which makes the layout of the web page very ugly. So today I will teach you how to solve the problem of blank lines appearing in the form form.
In fact, the blank lines appearing on and below the form form are not real blank lines, but the form form comes with a default margin value, but this value is not equal to 0, so we only need to use css to control the form margin=0 to solve this problem. The CSS code is as follows:
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