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1.justify-content:
2.align-items:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"> <title>Demo for flex on uc</title> <style type="text/css"> html,body{ padding: 0; margin: 0; } .demo1{ background-color: yellow; text-align: center; height: 80px; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; /* for uc */ display: -webkit-box; -webkit-box-align: center; } .demo1>div{ background-color: green; margin: 2px; -webkit-flex: 1; flex: 1; /* for uc */ -webkit-box-flex: 1; -moz-box-flex: 1; -ms-flex: 1; } .demo2{ background-color: yellow; width: 80px; height: 200px; display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; -webkit-align-items: center; align-items: center; /* for uc */ display: -webkit-box; -webkit-box-orient: vertical; -moz-box-orient: vertical; box-orient: vertical; -webkit-box-align: center; } .demo2>div{ background-color: green; width: 40px; margin: 2px; -webkit-flex: 1; flex: 1; /* for uc */ -webkit-box-flex: 1; -moz-box-flex: 1; -ms-flex: 1; } </style> </head> <body> <h2>左右排列，上下居中</h2> <div class="demo1"> <div>flex</div> <div>flex</div> <div>flex</div> <div>flex</div> <div>flex</div> </div> <h2>上下排列，左右居中</h2> <div class="demo2"> <div>flex</div> <div>flex</div> <div>flex</div> <div>flex</div> <div>flex</div> </div> </body> </html>
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原文地址：http://www.cnblogs.com/subtract/p/5257335.html
