#preloader{
    background-color: rgba(255,255,255,0.8);
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    z-index: 8000;
    visibility: hidden;
    opacity: 0;
}
#preloader.show{
    visibility: visible;
    opacity: 1;
}
    #preloader .spinner {
        margin: 20% auto 0 auto;
        height: 15%;
        text-align: center;
        font-size: 10px;
        max-height: 100px;
    }
    #preloader .spinner > div {
        background-color: #ff0000;
        height: 100%;
        width: 1%;
        max-width: 12px;
        display: inline-block;
        -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
        animation: sk-stretchdelay 1.2s infinite ease-in-out;
    }
    #preloader .spinner .rect2 {
        -webkit-animation-delay: -1.1s;
        animation-delay: -1.1s;
    }
    #preloader .spinner .rect3 {
        -webkit-animation-delay: -1.0s;
        animation-delay: -1.0s;
    }
    #preloader .spinner .rect4 {
        -webkit-animation-delay: -0.9s;
        animation-delay: -0.9s;
    }
    #preloader .spinner .rect5 {
        -webkit-animation-delay: -0.8s;
        animation-delay: -0.8s;
    }
    @-webkit-keyframes sk-stretchdelay {
        0%, 40%, 100% { -webkit-transform: scaleY(0.4) }  
        20% { -webkit-transform: scaleY(1.0) }
    }
    @keyframes sk-stretchdelay {
        0%, 40%, 100% { 
          transform: scaleY(0.4);
          -webkit-transform: scaleY(0.4);
        }  20% { 
          transform: scaleY(1.0);
          -webkit-transform: scaleY(1.0);
        }
    }