<div></div>
@import url("https://fonts.googleapis.com/css?family=Gochi+Hand");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  background-color: #291642;
  font-family: "Gochi Hand", sans-serif;
  font-size: 130%;
  letter-spacing: 0.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

div {
  width: 30vmin;
  min-width: 20vmin;
  max-width: 50vmin;
  overflow: hidden;
  resize: horizontal;
}

div::before {
  content: "";
  display: block;
  width: 100%;
  height: 0;
  padding-bottom: 100%;
  background: #f36;
}
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External JavaScript

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