#pre-loader {
    background-color: var(--primary-color);
    display: flex;
    justify-items: center;
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    z-index: 2147483646;
}
#pre-loader .pre-loader-wrapper {
    width: 250px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    font-family: helvetica, arial, sans-serif;
    text-transform: uppercase;
    font-weight: 900;
    color: var(--secondary-color);
    letter-spacing: 0.2em;
    
}

    #pre-loader .pre-loader-wrapper::before,
    #pre-loader .pre-loader-wrapper::after {
        content: "";
        display: block;
        width: 15px;
        height: 15px;
        background: var(--secondary-color);
        position: absolute;
        animation: preloader .7s infinite alternate ease-in-out;
    }

    #pre-loader .pre-loader-wrapper::before {
        top: 0;
    }

    #pre-loader .pre-loader-wrapper::after {
        bottom: 0;
    }



@keyframes preloader {
    0% {
        left: 0;
        height: 30px;
        width: 15px
    }

    50% {
        height: 8px;
        width: 40px
    }

    100% {
        left: 235px;
        height: 30px;
        width: 15px
    }
}