style.css

@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600;700&display=swap');
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Quicksand', sans-serif;
}

section {
    position: relative;
    width: 100%;
    height: 100vh;
    background: #111111;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

section h2 {
    position: relative;
    font-size: 14em;
    color: #111111;
    font-weight: 300;
    cursor: default;
    z-index: 1;
}

.circle {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #ff2562;
    pointer-events: none;
    transition: 0.1s;
    clip-path: circle(50px at var(--x) var(--y));
}

section h2:hover~.circle {
    background: #64ff14;
    clip-path: circle(200px at var(--x) var(--y));
}