.platforms{
    position: relative;
    display: flex;
    flex-direction: column;
    perspective: 400px;
    top: 20%;
    right: 0;
}
.platform img{
    height: 40px;
}
.platform{
    position: relative;
    padding: 10px;
    border: 1px solid #f5f;
    border-radius: 3px;
    margin: 5px;
    /*top: -50px;*/
    height: 60px;
    width: 150px;
    left: 0;
    box-sizing: border-box;
    background-color: #1b1e21;
    transform-origin: top;
    animation: drop-down 500ms forwards;

    backface-visibility: hidden;
}
.platform:first-child{
    transform: rotateX(0deg);
}
.platform:nth-child(2){
    transform: rotateX(-180deg) translateY(60px);
    animation-delay: 400ms;
}
.platform:nth-child(3){
    transform: rotateX(-180deg) translateY(120px);
    animation-delay: 800ms;
}
.platform:nth-child(4){
    transform: rotateX(-180deg) translateY(180px);
    animation-delay: 1200ms;
}
.platform:nth-child(5){
    transform: rotateX(-180deg) translateY(240px);
    animation-delay: 1600ms;
}
@keyframes drop-down {
    0%{
        transform: rotateX(-180deg);
    }
    50%{
        transform: rotateX(0) translateY(0);
    }
    70%{
        transform: rotateX(-30deg);
    }
    85%{
        transform: rotateX(0);
    }
    93%{
        transform: rotateX(-15deg);
    }
    100%{
        transform: rotateX(0);
    }
}

@media only screen and (max-width: 768px) {
    .platforms {
        left: 40% !important;
        top: -10% !important;
    }
}