.loading-bar {
    align-items: stretch;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    .item {
        animation-duration: 5s;
        animation-iteration-count: infinite;
        animation-name: loadBar;
        animation-timing-function: ease-in;
        background: $gray;
        flex: 1;
        height: 5px;
    }

    $colors-list: $yellow-pear $green-japanese-laurel $red-amaranth $purple-eggplant $green-olive;
    @each $current-color in $colors-list {
        $i: index($colors-list, $current-color) - 1;
        .item-#{$i} {
            animation-delay: #{$i}s;
            background: $current-color;
        }
    }
}