* {box-sizing: border-box;}

html {
    margin: 0;
    padding: 0;
    height: 100%;
    width:100%;
    background: #30334d;
}

body {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    margin: 0;
}

.black {
    background: black;
    height: 10%;
    box-shadow: 0 10px 10px #000000a0;
    position: relative;
    overflow: visible;
}

.white {
    height: 100%;
    width: 100%;
    background: url(corte.png);
    animation: spiral 10s 0s infinite linear;
    background-size: contain;
}

@keyframes spiral {
    0% {
        background-position-x:0vh;
    }
    100% {
        background-position-x:-20vh;
    }
}


.text {
    color: white;
    font-family: system-ui;
    position: absolute;
    top: 150%;
    left: 0;
    font-weight: bold;
    letter-spacing: 2px;
    font-size: 4vh;
    text-shadow: 2px 2px 3px black;
    text-align: center;
    width: 100%;
}