.container {
    width: 400px;
}

.progress {
    padding: 6px;
    background: #00000040;
    border-radius: 30px;
}


.progress-bar {
    height: 18px;
    background-color: aquamarine;
    border-radius: 30px;
    animation: loading 5s;
}




@keyframes loading {
    0% {
        width: 0%;
    }

    50% {
        width: 50%;
    }

    100% {
        width: 100%;
    }

}