.loading-wave {
    max-width: 300px;
    height: 22px;
    display: flex;
    justify-content: center;
    align-items: flex-end;
}

.loading-bar {
    width: 20px;
    height: 10px;
    margin: 0 0px;
    background-color: indianred;
    border-radius: 5px;
    border-color: black;
    border-width: 1px;
    border-style: solid;
    animation: loading-wave-animation 1s ease-in-out infinite;
}


    .loading-bar:nth-child(1) {
        background-color: indianred;
    }

    .loading-bar:nth-child(2) {
        animation-delay: 0.1s;
        background-color: dodgerblue;
    }

    .loading-bar:nth-child(3) {
        animation-delay: 0.2s;
        background-color: white;
    }

    .loading-bar:nth-child(4) {
        animation-delay: 0.3s;
        background-color: yellow;
    }

@keyframes loading-wave-animation {
    0% {
        height: 1px;
    }

    50% {
        height: 95%;
    }

    100% {
        height: 1px;
    }
}