html,
body {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 0;
    position: fixed;
    background-color: #f1f1f1;
}

.loader {
    display: block;
    width: 200px;
    height: 3px;
    border-radius: 50px;
    background-color: rgba(0, 0, 0, 0.2);
    position: relative;
    margin: 24px
}

.loader::before {
    content: "";
    position: absolute;
    background: #004F49;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    border-radius: 30px;
    animation: moving 1s ease-in-out infinite;
    ;
}

span {
    font-family: "Poppins", sans-serif;
    font-size: 16px;
    color: grey;
}

@keyframes moving {
    50% {
        width: 100%;
    }

    100% {
        width: 0;
        right: 0;
        left: unset;
    }
}