The content height only accounts for about 4/5 of the browser height. Why does the vertical scroll bar appear?
Only by posting the code can you see it!
There are a lot of codes to post.
overflow:scroll; Look for this style, delete it and try...
html,body {
height: 100%;
margin: 0px;
font-size:12px;
}
height: 100%; is an error in this sentence.
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