* {
    margin: 0;
    padding: 0;
}

html,
body,
.container {
    width: 100%;
    height: 100%;
}

.container {
    overflow: hidden;
    position: relative;
}

.slide {
    height: 100%;
    position: relative;
    
    animation: 20s slide infinite;
}

.word {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    
    color: #fff;
    font-size: 200px;
}

.red {
    background-color: red;
}

.yellow {
    background-color: gold;
}

@keyframes slide {
    0% {
        top: 0;
    }
    
    15% {
        top: -100%;
    }
    
    30% {
        top: -200%;
    }
    
    45% {
        top: -300%;
    }
    
    60% {
        top: -400%;
    }
}