.responsive-band {
    display: flex;
    overflow: hidden;
    white-space: nowrap;
    width: 100%;
    animation: roll 10s linear infinite;
}

.content {
    padding: 20px;
    background-color: #4CAF50;
    color: white;
    margin-right: 10px;
}

@keyframes roll {
			0% {	transform: translateX(100%);
								}
			100% {	transform: translateX(-100%);
    								}
		}