<div class="container">
  <div class="box1"></div>
  <div class="box2"></div>
  <div class="box3"></div>
</div>
.box1 {
  width: 200px;
  height: 200px;
  background-image: linear-gradient(red, blue);
  margin-bottom: 5px;
}

.box2 {
  width: 200px;
  height: 200px;
  background-image: linear-gradient(to left, red 70%, blue);
}

.box3 {
  width: 200px;
  height: 200px;
  background-image: linear-gradient(135deg, red, blue, purple);
}

External CSS

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External JavaScript

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