body, html {
    background-color: #0a0a0a;
}

.loader {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: block;
    margin:15px auto;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
    position: absolute;
    top: 20%;
    left: calc(50% - 24px);
}

.loader::after,
.loader::before {
    content: '';  
    box-sizing: border-box;
    position: absolute;
    left: 0;
    top: 0;
    background: #FF3D00;
    width: 16px;
    height: 16px;
    transform: translate(-50%, 50%);
    border-radius: 50%;
}

.loader::before {
    left: auto;
    right: 0;
    background: #FFF;
    transform: translate(50%, 100%);
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
} 

#loader {
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99999999;
}