:root {
    --left-bg-color: rgba(62, 62, 71, 0.7);
    --right-bg-color: rgba(43, 43, 43, 0.8);
    --left-btn-hover-color: rgba(87, 84, 236, 1);
    --right-btn-hover-color: rgb(118, 146, 118);
    --hover-width: 55%;
    --other-width: 45%;
    --speed: 1000ms;
}



* {
    box-sizing: border-box;
}

body {
    height: 100vh;
    overflow: hidden;
    margin: 0;

}

h1 {
    font-size: 4em;
    position: absolute;
    left: 50%;
    top: 20%;
    transform: translateX(-50%);
    white-space: nowrap;
    color: red;
}

.btn {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    left: 50%;
    top: 40%;
    text-decoration: none;
    transform: translateX(-50%);
    color: white;
    border: #fff solid 0.2rem;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    width: 15rem;
    padding: 1.5rem;
}

.split.left .btn:hover {
    background-color: var(--left-btn-hover-color);
    border-color: var(--left-btn-hover-color);
}

.split.right .btn:hover {
    background-color: var(--right-btn-hover-color);
    border-color: var(--right-btn-hover-color);
}

.container {
    position: relative;
    width: 100%;
    height: 100%;
    background: #333;
}

.split.left {
    left: 0;
    background: url('https://pbs.twimg.com/media/FKJLDtvVgAImYiy?format=jpg&name=medium');
    background-size: cover;
    background-repeat: no-repeat;
}

.split {
    position: absolute;
    width: 100%;
    height: 100%;
    content: '';
    background-color: var(--left-bg-color);
}

.split.right {
    right: 0;
    background: url('https://pbs.twimg.com/media/FKJOn3wVQAAphNd?format=jpg&name=large');
    background-repeat: no-repeat;
    background-size: cover;
}

.split.left::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--left-bg-color);
}

.split.right::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--right-bg-color);
}

.split.right,
.split.left, 
.split.right::before,
.split.left::before {
    transition: all var(--speed) ease-in-out;
}

.hover-left .left {
    width: var(--hover-width);
}

.hover-left .right {
    width: var(--other-width);
}

.hover-right .left {
    width: var(--other-width);
}

.hover-right .right {
    width: var(--hover-width);
}

@media (max-width: 800px) {
    h1 {
        font-size: 2rem;
        top: 30%;
    }

    .btn {
        padding: 1.2rem;
        width: 12rem;
    }
}