CloneCSS-His Dark Materials Font Split

index.html

<h1 style="--text: 'His Dark Materials';"><span>His</span> Dark Materials</h1>

playground.json

{
  "scripts": [],
  "styles": []
}

script.js

‎‎​

style.css

@import url('https://fonts.googleapis.com/css?family=Josefin+Sans:400,700&display=swap');

* {
	box-sizing: border-box;
	--low: 20%;
	--high: 80%;
	--gap: 0.9rem;
	--offset: calc(var(--gap) / 2);
}

body {
	background: black;
	color: white;
	display: grid;
	place-items: center;
	height: 100vh;
}

h1 {
	text-align: center;
	font-family: 'Josefin Sans';
	font-size: 3rem;
	line-height: 1;
	text-transform: uppercase;
	position: relative;
	max-width: 30rem;
	color: transparent;
}

@media (min-width: 40rem) {
	h1 {
		font-size: 5rem;
	}
}

h1 span {
	color: white;
	font-weight: 700;
	letter-spacing: -0.03em;
}

h1::before,
h1::after {
	content: var(--text);
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	text-align: center;
	color: white;
	z-index: -1;
}

h1::before {
	font-weight: 700;
	letter-spacing: -0.03em;
	--clip1: polygon(calc(var(--high) + var(--offset)) 0, 100% 0, 100% 100%, calc(var(--low) + var(--offset)) 100%);
	clip-path: var(--clip1);
}

h1::after {
	font-weight: 400;
	--clip2: polygon(calc(var(--high) - var(--offset)) 0, calc(var(--low) - var(--offset)) 100%, 0 100%, 0 0);
	clip-path: var(--clip2);
}