body {
    background-color: rgb(5, 5, 5);
}

.loader {
    width: 150px;
    height: 20px;
    display: inline-block;
    background-color: #FFF;
    border: 1px solid #FFF;
    border-radius: 4px;
    background-image: linear-gradient(45deg, rgba(0, 0, 0, 0.25) 25%, transparent 25%, transparent 50%, rgba(0, 0, 0, 0.25) 50%, rgba(0, 0, 0, 0.25) 75%, transparent 75%, transparent);
    font-size: 30px;
    background-size: 1em 1em;
    box-sizing: border-box;
    animation: barStripe 1s linear infinite;
}

@keyframes barStripe {
    0% {
        background-position: 1em 0;
    }

    100% {
        background-position: 0 0;
    }
}