body{
    background-color: #000814;
    color: white;
}
#h1{
    text-align: center;
    margin-bottom: 25px;
}
.right{
    width: 100%;
    height: 100%;
    animation-name: right;
    animation-duration: 5s;
    animation-iteration-count: 1;
}
@keyframes right{
    from{width: 0%;}
    to{width: 100%;}
}
.left{
    width: 100%;
    height: 100%;
    animation-name: left;
    animation-duration: 5s;
    animation-iteration-count: 1;
}
@keyframes left{
    from{width: 0%;}
    to{width: 100%;}
}