.tree {
    font-size:large;
    ul, li {
        position: relative;
    }

    ul {
        list-style: none;
        padding-left: 32px;
    }

    li::before,
    li::after {
        content: "";
        position: absolute;
        left: -12px;
    }
    li::before {
        border-top: 3px solid $second_soft_color;
        top: 9px;
        width: 8px;
        height: 0;
    }
    li::after {
        border-left: 3px solid $second_soft_color;
        height: 100%;
        width: 0px;
        top: 2px;
    }
    ul > li:last-child::after {
        height: 8px;
    }

    .category_node {

    }
}