html body {
 height: 100vh;
 width: 100vw;
 margin: 0;
 overflow: hidden;
}
.burger-price{
    width: 100vw;
    max-width: 400px;
    height: auto;
    max-height: 300px;
    background-color: white;
    opacity: .9;
    border-radius: 5px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    font-size: 2.7em;
    font-weight: 600;
    font-family: Verdana, sans-serif;
    text-align: center;
    padding-top:.2em;
}
.burger-price img{
    height:1em;
    vertical-align: middle;
    padding-bottom: .2em
}
.burger-price span{
    display: inline-flex;
}
.background{
    display: flex;
    flex-direction: row;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    background-color: #FFC836;
}
.column{
    width: 10vw;
    height: 100vh;
    overflow: hidden;
}
.burger-container{
    height: 200vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: moveVerticalDown 6s linear infinite;
}
img { float: top; }
.burger{
    width: 80%;
    margin-top: .5em;
    animation: rotateClockwise 3s linear infinite;
}
.btc-container{
    height: 200vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: moveVerticalUp 6s linear infinite;
}
.btc{
    width: 70%;
    margin-top: 1em;
    animation: rotateCounterClockwise 3s linear infinite;
}

@keyframes moveVerticalDown {
    0% {
        transform: translateY(-100vh);
    }
    100% {
        transform: translateY(var(--burger-end-y)); 
    }
}
@keyframes moveVerticalUp {
    0% {
        transform: translateY(var(--btc-start-y));
    }
    100% {
        transform: translateY(-100vh); 
    }
}
@keyframes rotateClockwise {
    0% {
        transform: rotate(-30deg);
    }
    100% {
        transform: rotate(330deg); 
    }
}
@keyframes rotateCounterClockwise {
    0% {
        transform: rotate(30deg);
    }
    100% {
        transform: rotate(-330deg); 
    }
}