*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.preload-container{
    position: relative;
    margin-left: 92px;
}
.preload-container span{
    position: absolute;
    width: 6px;
    height: 50px;
    margin-top: -45px;
    border-radius: 10px;
    background-color: #222;
    animation: animate 0.8s infinite;
    animation-direction: alternate-reverse;
}
.preload-container span:nth-child(1){
    margin-left: 0px;
}
.preload-container span:nth-child(2){
    margin-left: -14px;
    animation-delay: 0.1s;
}
.preload-container span:nth-child(3){
    margin-left: -28px;
    animation-delay: 0.2s;
}
.preload-container span:nth-child(4){
    margin-left: -42px;
    animation-delay: 0.3s;
}
.preload-container span:nth-child(5){
    margin-left: -56px;
    animation-delay: 0.4s;
}
.preload-container span:nth-child(6){
    margin-left: -70px;
    animation-delay: 0.5s;
}
.preload-container span:nth-child(7){
    margin-left: -84px;
    animation-delay: 0.6s;
}
.preload-container span:nth-child(8){
    margin-left: -98px;
    animation-delay: 0.7s;
}
@keyframes animate{
    0%{
        height: 5px;
        margin-top: 0;
        transform: rotate(40deg);
    }
    100%{
        height: 50px;
         transform: rotate(0deg);
    }
}