<div class="example"></div>
* {
	box-sizing: border-box;
}
body {
	min-height: 100vh;
	margin: 0;
	padding: 0;
	display: flex;
	justify-content: center;
	align-items: center;
}
.example {
	width: 100px;
	height: 100px;
	border-top: 20px solid #a0dde2;
	border-left: 20px solid #e2a0b4;
	border-right: 20px solid #eec496;
	border-bottom: 20px solid #a0e2c2;
}

External CSS

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External JavaScript

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