relax.css

@font-face {
    font-family: 'Jelle';
    src: url('./fonts/Jellee-Roman.otf') format('embedded-opentype'), /* Internet Explorer */
    url('./fonts/Jellee-Roman.otf') format('woff2'), /* Super Modern Browsers */
    url('./fonts/Jellee-Roman.otf') format('woff'), /* Pretty Modern Browsers */
    url('./fonts/Jellee-Roman.otf') format('truetype'), /* Safari, Android, iOS */
    url('./fonts/Jellee-Roman.otf') format('svg');
    /* Legacy iOS */
}

body {
    height: 100vh;
    background: radial-gradient(ellipse at bottom, black 0%, #01162E 100%);
    font-family: "Jellee", "M PLUS Rounded 1c", "Mulish", sans-serif !important;
}

#main-text {
    color: white;
    position: absolute;
    font-size: 4rem;
    left: 50%;
    transform: translateX(-50%);
    top: 12rem;
}

#start-container {
    position: relative;
    height: 100%;
    z-index: 2;
}

#start-text {
    color: white;
    font-size: 4rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

#start-desc-text {
    color: white;
    font-size: 1.5rem;
    font-family: 'Mulish', sans-serif;
    margin-bottom: 2rem;
    margin-top: 0.3rem;
    font-weight: 300;
    line-height: 2rem;
}

.absolute-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.button {
    background: #EF6C00;
    border-radius: 30px;
    box-shadow: #EF6C00 0 10px 20px -10px;
    color: #FFFFFF;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 24px;
    opacity: 1;
    outline: 0 solid transparent;
    padding: 0.8rem 3rem;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    width: fit-content;
    word-break: break-word;
    border: 0;
}

.button:hover {
    background-color: #E65100;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50px;
    animation: move;
    animation-iteration-count: 1;
    animation-timing-function: linear;
    animation-fill-mode: forwards;
}

​ .type-1 {
    width: 1px;
    height: 1px;
    box-shadow: 0 0 1px #fff;
}

.type-2 {
    width: 2px;
    height: 2px;
    box-shadow: 0 0 1px #fff;
}

.type-3 {
    width: 4px;
    height: 4px;
    box-shadow: 0 0 1px #fff;
}

.hidden {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 1s, opacity 1s linear;
}

.visible {
    visibility: visible;
    opacity: 1;
    transition: opacity 1s linear;
}

.fade-in {
    animation: fade-in 8s
}

@keyframes fade-in {
    from {
        opacity: 0
    }
    to {
        opacity: 1
    }
}

@keyframes move {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-1200px);
        display: none;
        color: red;
    }
}

@media screen and (max-width: 768px) {
    .absolute-center {
        width: 80%;
    }
    #main-text {
        font-size: 2rem;
        width: 80%;
    }
    #start-text {
        font-size: 2.5rem;
    }
    #start-desc-text {
        font-size: 1.2rem;
        line-height: 1.6rem;
    }
}