* {
    font-family: "Open Sans", sans-serif;
}

@keyframes gradient {
    0% {background-position-x: 0%;}
    100% {background-position-x: 400%;}
}

body {
    background: linear-gradient(90deg, rgb(255, 121, 246) 0%, rgb(66, 252, 112) 50%, rgb(255, 121, 246) 100%); 
    background-size: 400% 100%;
    background-attachment: fixed;
    background-position-x: 0%;
    animation: gradient 50s infinite;
    animation-timing-function: linear;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.center {
    text-align: center;
    font-size: 3vh;
}