* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html, body {
    background-color: #000;
    width: 100%;
    height: 100%;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid #fff;
    border-radius: 24px;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
}
.mouse:after {
    content: "";
    position: absolute;
    top: 5px;
    left: 50%;
    margin-left: -2px;
    background-color: #fff;
    border-radius: 100%;
    width: 4px;
    height: 4px;
    opacity: 1;
    -webkit-transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
    transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
    -webkit-animation: scroll 1.5s -1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    animation: scroll 1.5s -1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

@-webkit-keyframes scroll {
    0%, 20% {
        -webkit-transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
        transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
    }
    10% {
        -webkit-transform: translateY(0px) scaleY(1.2) scaleX(1.2) translateZ(0px);
        transform: translateY(0px) scaleY(1.2) scaleX(1.2) translateZ(0px);
        opacity: 1;
    }
    100% {
        -webkit-transform: translateY(20px) scaleY(2.5) scaleX(0.5) translateZ(0px);
        transform: translateY(20px) scaleY(2.5) scaleX(0.5) translateZ(0px);
        opacity: 0.01;
    }
}
@keyframes scroll {
    0%, 20% {
        -webkit-transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
        transform: translateY(0px) scaleY(1) scaleX(1) translateZ(0px);
    }
    10% {
        -webkit-transform: translateY(0px) scaleY(1.2) scaleX(1.2) translateZ(0px);
        transform: translateY(0px) scaleY(1.2) scaleX(1.2) translateZ(0px);
        opacity: 1;
    }
    100% {
        -webkit-transform: translateY(20px) scaleY(2.5) scaleX(0.5) translateZ(0px);
        transform: translateY(20px) scaleY(2.5) scaleX(0.5) translateZ(0px);
        opacity: 0.01;
    }
}