:root {
    --gradient: linear-gradient(30deg,
    rgb(156, 91, 231),
    rgb(98, 100, 248),
    rgb(119, 186, 248));
}

* {
    margin: 0;
    padding: 0;
}

section {
    height: 100vh;
    background-image: var(--gradient);
    background-size: 300%;
    font-family: 'Roboto', sans-serif;
    color: white;
    animation: gradient-anim 16s 0s linear infinite;
    user-select: none;
}

#title {
    text-align: center;
    font-weight: 100;
    padding: 20px;
}

#sub-title {
    text-align: left;
    padding-top: 30px;
    padding-left: 30px;
    padding-bottom: 10px;
}

#section {
    background-color: rgba(255, 255, 255, 20%);
    padding: 30px;
    border-radius: 30px;
    font-size: 18px;
    text-align: center;
}

#btn {
    width: 100px;
    height: 50px;
    align-self: center;
    margin-top: 20px;
    border-radius: 20px;
    border: 0px solid black;
    background-color: rgba(200, 200, 200, 70%);
}

#btn:hover {
    background-color: rgba(200, 200, 200, 40%);
}

@keyframes gradient-anim {
    0% {
       background-position-x: left;
       background-position-y: top;
    }
    25% {
        background-position-x: left;
        background-position-y: bottom;
    }
    50% {
        background-position-x: right;
        background-position-y: bottom;
    }
    75% {
        background-position-x: right;
        background-position-y: top;
    }
    100% {
        background-position-x: left;
        background-position-y: top;
    }
}