@charset "utf-8";

body {
    display: flex;
    place-items: center;
    width: 100%;
    height: 100vh;
}

.box {
    position: relative;
    width: 800px;
    height: 50vh;
    margin-inline: auto;
}

.box h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    padding: 0;
    width:1000px;
    text-align: center;
    font-size: 12em;
    text-transform: uppercase;
    text-shadow: 0px -5px 15px rgba(0,0,0,.2);
}

.box h1:nth-child(2) {
    background: #f3f3f3;
    color: #fff;
    overflow: hidden;
    z-index: 2;
    transition: .5s;
    clip-path: polygon(0 0, 100% 0 , 100% 0, 0 100%);
}

.box h1:nth-child(2):hover {
    clip-path: polygon(0 0, 100% 0 , 100% 100%, 0 100%);
}

.box h1:nth-child(1):hover ~ h1 {
    clip-path: polygon(0 0, 100% 0 , 100% 0, 0 0);
}