代码编辑器：
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<meta charset="utf-8"><link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> 3
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<style> 5
#myDIV {6
position: absolute;7
left: 0;8
width: 100px;9
height: 100px;10
background-color: coral;11
color: white;12
animation: mymove 5s infinite; /* Chrome, Safari, Opera */13
animation: mymove 5s infinite;14
}15
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/* Chrome, Safari, Opera */17
@-webkit-keyframes mymove {18
50% {left: 500px;}