<div class="zenitsu">
  <h1>我妻善逸</h1>
</div>
body {
    margin: 0;
}
body > div {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: -1;
}
.zenitsu {
	background:
	linear-gradient(120deg, transparent 90%, #fff 90%) 0 0 / 40px 40px,
	linear-gradient(-120deg, transparent 90%, #fff 90%) 0 0 / 40px 40px,
	linear-gradient(120deg, transparent 90%, #fff 90%) 20px 20px / 40px 40px,
	linear-gradient(-120deg, transparent 90%, #fff 90%) 20px 20px / 40px 40px,
    linear-gradient(#ff3, #f63);
}
h1 {
	background: #fff;
	padding: .5em 1em;
	border-radius: .5em;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

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