User:তাহমিদ/Sandbox/style.css

@keyframes myOwnAnimation {
    from {
        bottom: 0;
    }
    to {
        top: 0;
    }
}

.myOwnClass {
    position:fixed;
    bottom:0;
    right: 0;
    animation-name: myOwnAnimation;
    animation-duration: 4s;
    animation-delay: 4s;
    animation-iteration-count: infinite;
    animation-direction: alternate;
}