<div class="block block-1">
  <code>border-radius: 16px;</code>
</div>
<div class="block block-2">
  <code>border-radius: 4px 25px;</code>
</div>
<div class="block block-3">
  <code>border-radius: 16px 0 50px 80%;</code>
</div>
<div class="block block-4">
  <code>border-radius: 12px / 40px;</code>
</div>
<div class="block block-5">
  <code>border-radius: 16px 10px 4px 50px / 50px 16px 4px 20%;</code>
</div>
.block {
  width: 450px;
  height: 150px;
  background-color: #ccc;
  border: 2px solid #666;
  margin-bottom: 16px;
  line-height: 146px;
  box-sizing: border-box;
  text-align: center;
  font-family: monospace;
  color: #222;
  font-size: 13px;
}

.block-1 {
  border-radius: 16px;
}
.block-2 {
  border-radius: 4px 25px;
}
.block-3 {
  border-radius: 16px 0 50px 80%;
}
.block-4 {
  border-radius: 12px / 40px;
}
.block-5 {
  border-radius: 16px 10px 4px 50px / 50px 16px 4px 20%;
}

External CSS

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External JavaScript

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