.progress{
    width: 100%;
    max-width: 100px;
    height: 6px;
    background: #302222;
    overflow: hidden;
    border: 1px solid #473434;
}
.progress-bar {
    padding: 1px;
    display: block;
    height: 100%;
    background: linear-gradient(90deg,#62b83a,#9a833b 17%,#a1623a 34%,#9e4f3b 51%,#62b83a 68%,#9a833b 85%,#a1623a);
    background-size: 300% 100%;
    animation: progress-animation 2s linear infinite;
}
    
@keyframes progress-animation {
    0% {
        background-position: 100%;
    }
    100% {
        background-position: 0;
    }
}