.front_loader {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgb(0,0,0,0.2);
    z-index: 990;
}

.frontloader {
    left: 50%;
    margin-left: -4em;
    font-size: 10px;
    border: 0.8em solid rgb(255 255 255);
    border-left: .8em solid rgba(58, 166, 165, 1);
    animation: spin 1.1s infinite linear;
    z-index: 999;
}

.frontloader, .frontloader:after {
    border-radius: 50%;
    width: 8em;
    height: 8em;
    display: block;
    position: absolute;
    top: 50%;
    margin-top: -4.05em;
}
@keyframes spin {
    0% {
        transform: rotate(360deg);
    }
    100% {
        transform: rotate(0deg);
    }
}
/* data-table loader */
.datatable_front_loader {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgb(0,0,0,0.2);
    z-index: 990;
}

.datatable_frontloader {
    left: 50%;
    margin-left: -4em;
    font-size: 10px;
    border: 0.8em solid rgb(255 255 255);
    border-left: .8em solid rgba(58, 166, 165, 1);
    animation: spin 1.1s infinite linear;
    z-index: 999;
}

.datatable_frontloader, .datatable_frontloader:after {
    border-radius: 50%;
    width: 8em;
    height: 8em;
    display: block;
    position: absolute;
    top: 50%;
    margin-top: -4.05em;
}
@keyframes spin {
    0% {
        transform: rotate(360deg);
    }
    100% {
        transform: rotate(0deg);
    }
}