/* ALL LOADERS */
.loader{
    width: 100px;
    height: 100px;
    border-radius: 100%;
    position: relative;
    margin: 0 auto;
}
/* LOADER 1 */

.loader:before, .loader:after{
    content: "";
    position: absolute;
    top: -10px;
    left: -10px;
    width: 100%;
    height: 100%;
    border-radius: 100%;
    border: 10px solid transparent;
    border-top-color: #3498db;
}

.loader:before{
    z-index: 100;
    animation: spin 1s infinite;
}

.loader:after{
    border: 10px solid #ccc;
}

@keyframes spin{
    0%{
        -webkit-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }

    100%{
        -webkit-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}