The problem that old talk for a long time, I don't know how much trouble front-end developer, and the back-end programmers, actually very simple, write here, to share, there are a lot of people said, I have set the div 100%, how still didn't effect, I want to say is that there is a key of dongdong, you haven't set,

  code is as follows:  

HTML, body {height: 100%; Overflow: hidden; }

ha ha, this time you can, to set at the same time.
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This concludes the body part