.loader {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: block;
    margin: 15px auto;
    position: relative;
    color: #1093eb;
    box-sizing: border-box;
    animation: animloader 2s linear infinite;
}

@keyframes animloader {
    0% {
        box-shadow: 14px 0 0 -2px, 38px 0 0 -2px, -14px 0 0 -2px, -38px 0 0 -2px;
    }
    25% {
        box-shadow: 14px 0 0 -2px, 38px 0 0 -2px, -14px 0 0 -2px, -38px 0 0 2px;
    }
    50% {
        box-shadow: 14px 0 0 -2px, 38px 0 0 -2px, -14px 0 0 2px, -38px 0 0 -2px;
    }
    75% {
        box-shadow: 14px 0 0 2px, 38px 0 0 -2px, -14px 0 0 -2px, -38px 0 0 -2px;
    }
    100% {
        box-shadow: 14px 0 0 -2px, 38px 0 0 2px, -14px 0 0 -2px, -38px 0 0 -2px;
    }
}