html, body {
    height: 100%;
    margin: 0;
}


.preloader-wrap {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0; 
    bottom: 0;
    background: rgba(255,255,255,1);
    z-index : 6; 
}



.loader{
    height: 1px;
    max-width: 500px; 
    font-weight: 300;
    position: absolute; 
    top: 0; 
    bottom: 0; 
    left: 0; 
    right: 0;
    margin : auto; 
}
.loader:after{
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.trackbar {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    color: #fff;
    text-align: center;
    line-height: 30px;
    overflow: hidden;
    position: relative;
    opacity: 0.99;
}

.loadbar {
    width: 0%;
    height: 100%;
    background: black;
    box-shadow: 0px 0px 14px 1px #008737; 
    position: absolute;
    top: 0;
    left: 0;
    animation: flicker 5s infinite;
    overflow: hidden;
}



@keyframes animation {
    10% {
        opacity: 0.9;
    }
    30% {
        opacity: 0.86;
    }
    60% {
        opacity: 0.8;
    }
    80% {
        opacity: 0.75;
    }
}


@media (max-width: 767px) {
    .loader{
        max-width: 216px; 
    }
}