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              CSS3實(shí)現(xiàn)登錄窗口水平垂直居中顯示
              2021-10-22 16:59:32

              <!DOCTYPE html>
              <html>
              <head>
              <style>
              .flex-container {
                  position: absolute;
                  display: flex;
                  justify-content: center;
                  align-items: center;
                  background-color: DodgerBlue;
                  left: 0px;
                  top: 0px;
                  right: 0px;
                  bottom: 0px;
              }
              
              #login {
                background-color: #f1f1f1;
                width: 400px;
                height: 280px;
              }
              </style>
              </head>
              <body>
              <div class="flex-container">
                <div id="login"></div>
              </div>
              
              </body>
              </html>

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              本文摘自 :https://www.cnblogs.com/

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