scss.scss

.cover {
    background: #26A69A;
    z-index: 9999;
    content: '';
    height: 100vh;
    width: 100%;
    position: fixed;
}

.cover.hidden {
    animation: fadeout 2s;
    animation-fill-mode: forwards;
}

@keyframes fadeout {
    100% {
        opacity: 0;
        visibility: hidden;
    }
}

.contain {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 150px;
    width: 300px;
}

.dna {
    position: fixed;
    z-index: 99;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.spike {
    height: 80%;
    width: 3%;
    position: relative;
}

.spike::before,
.spike::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    transform: translateX(-50%);
    border-radius: 50%;
    margin: auto;
    height: 10px;
    width: 10px;
}

.spike::after {
    bottom: 0;
    background-color: #E0F2F1;
    animation: aniaft 1.5s linear infinite;
}

.spike::before {
    top: 0;
    background-color: aqua;
    animation: anibfr 1.5s linear infinite;
}

@keyframes anibfr {
    0% {
        top: 0%;
        transform: translateX(-50%) translateY(0%) scale(0.5);
        opacity: 0.75;
    }
    25% {
        transform: translateX(-50%) translateY(0%) scale(0.5);
        opacity: 0.5;
        z-index: -1;
    }
    50% {
        top: 100%;
        transform: translateX(-50%) translateY(-100%) scale(0.5);
        opacity: 0.25;
    }
    75% {
        transform: translateX(-50%) translateY(0%) scale(1.5);
        opacity: 1;
        z-index: 1;
    }
    100% {
        top: 0%;
        transform: translateX(-50%) translateY(0%) scale(0.5);
        opacity: 0.75;
    }
}

@keyframes aniaft {
    0% {
        bottom: 0%;
        transform: translateX(-50%) translateY(0%) scale(0.5);
        opacity: 0.25;
    }
    25% {
        transform: translateX(-50%) translateY(-100%) scale(1.5);
        opacity: 1;
        z-index: -1;
    }
    50% {
        bottom: 100%;
        transform: translateX(-50%) translateY(100%) scale(0.5);
        opacity: 0.75;
    }
    75% {
        transform: translateX(-50%) translateY(-100%) scale(1.5);
        opacity: 0.50;
        z-index: -1;
    }
    100% {
        bottom: 0%;
        transform: translateX(-50%) translateY(0%) scale(0.5);
        opacity: 0.25;
    }
}

.spike1::before,
.spike1::after {
    animation-delay: 0.15s;
}

.spike2::before,
.spike2::after {
    animation-delay: 0.3s;
}

.spike3::before,
.spike3::after {
    animation-delay: 0.45s;
}

.spike4::before,
.spike4::after {
    animation-delay: 0.6s;
}

.spike5::before,
.spike5::after {
    animation-delay: 0.75s;
}

.spike6::before,
.spike6::after {
    animation-delay: 0.9s;
}

.spike7::before,
.spike7::after {
    animation-delay: 1.05s;
}

.spike8::before,
.spike8::after {
    animation-delay: 1.2s;
}

.spike9::before,
.spike9::after {
    animation-delay: 1.35s;
}

.spike10::before,
.spike10::after {
    animation-delay: 1.5s;
}

.spike11::before,
.spike11::after {
    animation-delay: 1.65s;
}

.spike12::before,
.spike12::after {
    animation-delay: 1.8s;
}

.spike13::before,
.spike13::after {
    animation-delay: 1.95s;
}

.spike14::before,
.spike14::after {
    animation-delay: 2.1s;
}

.spike15::before,
.spike15::after {
    animation-delay: 2.25s;
}