SOURCE

<div></div>

div {
    height: 100px;
    line-height: 100px;
    text-align: center;
    background-image: radial-gradient(circle at center, #000 0 30px, #fff 30px 60px);
    background-position-x: 100px;
    position: relative;
    animation: move 2s infinite linear alternate;

    &::before {
        content: "LOREM IPSUM";
        color: #fff;
        mix-blend-mode: difference;
        font-size: 24px;
        font-weight: 900;
    }
}
@keyframes move {
    0% {
        background-position-x: -60px;
    }
    100% {
        background-position-x: 60px;
    }
}