style.css

* {
    margin: 0;
    padding: 0;
    user-select: none;
    box-sizing: border-box;
}

body {
    height: 300vh;
    background: url(images/bg.jpg);
    background-position: center !important;
    background-size: cover !important;
    background-attachment: fixed !important;
}

section {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
}

section .side {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

section .side#side1 {
    background: rgb(82, 182, 43);
    clip-path: inset(0 60% 0 0);
    display: flex;
    align-items: center;
}

section .side#side2 {
    background: rgb(245, 14, 33);
    clip-path: inset(0 0 0 40%);
}

.herb {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 50px;
    left: 50px;
    background: url(images/armillary-sphere.png);
    background-size: cover;
    width: 502px;
    height: 502px;
}

.herb img {
    width: 275px;
    height: 275px;
}

@media screen and (min-width: 300px) and (max-width: 800px) {
    section .side#side1 {
        clip-path: inset(0 50% 0 0);
    }
    
    section .side#side2 {
        clip-path: inset(0 0 0 50%);
    }

    .herb {
        position: relative;
        top: 1%;
        left: 2px;
        width: 170px;
        height: 170px;
    }
    
    .herb img {
        width: 105px;
        height: 105px;
    }

    body {
        background: url(images/bg2.jpg);
    }
}