<div class="wrapper">
  <div class="left">
  </div>
</div>
.wrapper {
  position: relative;
  width: 800px;
  height: 375px;
  background: #FFEDE0;
  border: 1px dashed red;
  overflow: hidden;
}

.left {
  position: absolute;
  left: -1040px;
  top: 50%;
  width: 1200px;
  height: 1200px;
  background: #FFD1AE;
  border: 6px solid white;
  border-radius: 50%;
  transform: translateY(-50%);
}

External CSS

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External JavaScript

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