圣杯布局

双飞翼布局

=> 左右固定，中间自适应

圣杯布局

浮动和负margin

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<style type='text/css'>
    html,
    body {
      height: 100%;
      overflow: hidden;
    }
    .container {
      height: 100%;
      padding: 0 200px;
    }
    .left,
    .right {
      width: 200px;
      min-height: 200px;
      background-color: lightblue;
    }
    .center {
      width: 100%;
      min-height: 400px;
      background-color: lightsalmon;
    }
    .left,
    .center,
    .right {
      float: left;
    }
    .left {
      margin-left: -100%;
      position: relative;
      left: -200px;
    }
    .right {
      margin-right: -200px;
    }
  </style>
</head>
<body>
  <div class="container clearfix">
    <div class="center"></div>
    <div class="left"></div>
    <div class="right"></div>
  </div>
</body>

双飞翼布局

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<style type='text/css'>
    html,
    body {
        height: 100%;
        overflow: hidden;
    }

    .container,
    .left,
    .right {
        float: left;
    }

    .container {
        width: 100%;
    }

    .container .center {
        margin: 0 200px;
        min-height: 400px;
        background: lightsalmon;
    }

    .left,
    .right {
        width: 200px;
        min-height: 200px;
        background: lightblue;
    }

    .left {
        margin-left: -100%;
    }

    .right {
        margin-left: -200px;
    }
  </style>
</head>
<body class="clearfix">
  <div class="container">
      <div class="center"></div>
  </div>
  <div class="left"></div>
  <div class="right"></div>
</body>

其他方法实现以上布局

flex

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html,
body {
    overflow: hidden;
}

.container {
    display: flex;
    justify-content: space-between;
    height: 100%;
}

.left,
.right {
    flex: 0 0 200px;
    height: 200px;
    background: lightblue;
}

.center {
    flex: 1;
    min-height: 400px;
    background: lightsalmon;
}

定位

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<style>
    html,
    body {
        height: 100%;
        overflow: hidden;
    }

    .container {
        position: relative;
        height: 100%;
    }

    .left,
    .right {
        position: absolute;
        top: 0;
        width: 200px;
        min-height: 200px;
        background: lightblue;
    }

    .left {
        left: 0;
    }

    .right {
        right: 0;
    }

    .center {
        margin: 0 200px;
        min-height: 400px;
        background: lightsalmon;
    }
</style>

calc

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.center {
    /* 兼容到IE9 */
    width: calc(100% - 400px);
    min-height: 400px;
    background: #ffa07a;
}
......