.loader_container {
    display: none;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    opacity: 0.7;
    background: #000;
    z-index: 2000;
}

#loader {
    position: relative;
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    top: 100px;
    left: 50%;
    margin-left: -25px;
    animation-name: spinner 0.4s linear infinite;
    -webkit-animation: spinner 0.4s linear infinite;
    -moz-animation: spinner 0.4s linear infinite;
}

#loader:before {
    position: absolute;
    content: '';
    display: block;
    background-color: rgba(0, 0, 0, 0.2);
    width: 80px;
    height: 80px;
    border-radius: 80px;
    top: -15px;
    left: -15px;
}

#loader:after {
    position: absolute;
    content: '';
    width: 50px;
    height: 50px;
    border-radius: 50px;
    border-top: 2px solid white;
    border-bottom: 2px solid white;
    border-left: 2px solid white;
    border-right: 2px solid transparent;
    top: -2px;
    left: -2px;
}

@keyframes spinner {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@-webkit-keyframes spinner {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@-moz-keyframes spinner {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@media (min-width: 768px) {
    .hidden-md, .hidden-lg {
        display: none;
    }
}

@media (max-width: 767px) {
    .hidden-sm, .hidden-xs {
        display: none;
    }

    .sm-m-80px-b {
        margin-bottom: 0;
    }
}