.krampus,
.santa {
    height: 100px;
}

.chars:nth-of-type(1) {
    animation: wave 17s -20s linear infinite;
}

.chars:nth-of-type(2) {
    animation: wave 17s 0s linear infinite;
}

@keyframes wave {
    0% {
        right: -2%;
    }
    10% {
        height: 1%;
        margin-top: -1%;
    }
    20% {
        height: 2%;
        margin-top: -2%;
    }
    30% {
        height: 1%;
        margin-top: -1%;
    }
    40% {
        height: 2%;
        margin-top: -2%;
    }
    50% {
        height: 1%;
        margin-top: -1%;
    }
    60% {
        height: 2%;
        margin-top: -2%;
    }
    70% {
        height: 1%;
        margin-top: -1%;
    }
    80% {
        height: 2%;
        margin-top: -2%;
    }
    90% {
        height: 1%;
        margin-top: -1%;
    }
    100% {
        right: 100%;
        height: 2%;
        margin-top: -2%;
    }
}