<div class="container">
  <div class="center">center</div>
  <div class="left">left</div>
  <div class="right">right</div>
</div>

body {
  min-width: 630px;
}
.container {
  overflow: hidden;
  padding-left: 100px;
  padding-right: 200px;
}
.center {
  width: 100%;
  height: 150px;
  background-color: #94e8ff;
  float: left;
}
.left {
  width: 100px;
  height: 150px;
  background-color: #ffb5bf;
  float: left;
  margin-left: -100%;
  position: relative;
  left: -100px;
}
.right {
  width: 200px;
  height: 150px;
  background-color: #8990d5;
  float: left;
  margin-left: -200px;
  position: relative;
  right: -200px;
}