.side-img {
}

.side-btn {
    margin-top: 10%;
    height: 100vh;
    width: 100px;
    border-radius: 5%;

    border: medium none;
    background-image: none; 
    background: transparent;
    float: left;
    background-color: transparent;
    background-color: transparent;
}

@keyframes bounce {
	0%, 20%, 60%, 100% {
		transform: translateY(0);
		transform: translateY(0);
	}

	40% {
		transform: translateX(-20px);
		transform: translateX(-20px);
	}

	80% {
		transform: translateX(-10px);
		transform: translateX(-10px);
	}
}

.side-btn:hover{
    animation: bounce 1s;
    background-color: rgba(154, 254, 221, 0.152);
}

.side-btn:hover .side-img{
    opacity: 50%;
}

.div-btn {
    text-align: left;
    height: 100%;
}