<div id="justify">
  <div style="background-color:coral;"></div>
  <div style="background-color:lightblue;"></div>
</div>
#justify {
    display: -webkit-flex;
    -webkit-justify-content: space-around;
    display: flex;
    justify-content: space-around;
}

#justify div {
    width: 100px;
    height: 100px;
}

External CSS

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External JavaScript

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