*, *::before, *::after {
    box-sizing: border-box;
    user-select: none;
}

.random {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.08;
}

.main {
    position: fixed;
    width: 500px;
    height: 500px;
    border: 2px solid #000000;
    background-color: #000000;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.game {
    width: 100%;
}


.score {
    position: absolute;
    font-size: 2vmin;
    top: 1%;
    right: 1%;
    color: white;
}

.run {
    position: absolute;
    font-size: 2vmin;
    top: 30%;
    left: 1%;
    color: white;
}

.jump {
    position: absolute;
    font-size: 2vmin;
    top: 35%;
    left: 1%;
    color: white;
}

.runkm{
    position: absolute;
    font-size: 2vmin;
    top: 20%;
    left: 1%;
    color: white;
}

.hide {
    display: none;
}

.land{
    --left: 0;
    position: absolute;
    width: 100%;
    top: 80%;
    left: calc(var(--left) * 1%);
}

.spaceman {
    --bottom: 20;
    position: absolute;
    left: 1%;
    bottom: calc(var(--bottom) * 1%);
}

.stone {
    --left: 0;
    position: absolute;
    left: calc(var(--left)*1%);
    bottom: 20%
}

.game a{
    position: absolute;
    display: inline-block;
    font-size: 1em;
    background: #fff;
    padding: 5px 15px;
    text-decoration: none;
    color: #111;
    text-transform: uppercase;
    top: 94%;
    letter-spacing: 2px;
    transition: 0.2s;
}

.game a:hover{
    letter-spacing: 6px;
}

.cloud {
    --left: 0;
    position: absolute;
    width: 100%;
    left: calc(var(--left) * 1%);
}