.loader {
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid rgba(28, 52, 81, 0.75);
    border-bottom: 16px solid rgba(28, 52, 81, 0.75);
    margin: 120px auto;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

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

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

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Add animation to "page content" */
.loader-animate-content {
    display:none;
    position: relative;
    -webkit-animation-name: animatebottom;
    -webkit-animation-duration: 1s;
    animation-name: animatebottom;
    animation-duration: 1s;
}

@-webkit-keyframes animatebottom {
    from {
        bottom: -100px;
        opacity: 0;
    }

    to {
        bottom: 0px;
        opacity: 1;
    }
}

@keyframes animatebottom {
    from {
        bottom: -100px;
        opacity: 0;
    }

    to {
        bottom: 0;
        opacity: 1;
    }
}