.tree-diagram ul {
                        display: flex;
                        position: relative;
justify-content: center;
                        /* Reset */
                        list-style-type: none;
                        margin: 0;
                        padding: 1rem 0.5rem 0rem 0.5rem;
                    }

                    .tree-diagram ul ul::before {
                        border-right: 1px solid rgba(0, 0, 0, 0.3);
                        content: '';

                        /* Position */
                        position: absolute;
                        top: 0;
                        right: 50%;

                        /* Size */
                        height: 1rem;
                        width: 50%;
                    }

                    .tree-diagram li {
                        padding: 1rem 0.5rem 0rem 0.5rem;
                        position: relative;

                        /* Center the content */
                        align-items: center;
                        display: flex;
                        flex-direction: column;
                    }

                    .tree-diagram li::before {
                        border-right: 1px solid rgba(0, 0, 0, 0.3);
                        border-top: 1px solid rgba(0, 0, 0, 0.3);
                        content: '';

                        /* Position */
                        position: absolute;
                        top: 0;
                        right: 50%;

                        /* Size */
                        height: 1rem;
                        width: 50%;
                    }

                    .tree-diagram li::after {
                        border-top: 1px solid rgba(0, 0, 0, 0.3);
                        content: '';

                        /* Position */
                        position: absolute;
                        top: 0;
                        right: 0;

                        /* Size */
                        width: 50%;
                    }

                    .tree-diagram li:first-child::before,
                    .tree-diagram li:last-child::after {
                        /* Remove the top of border from the first and last items */
                        border-top: none;
                    }

                    /* Add a root item if you want */
                    li.tree-diagram__root::before {
                        border-right: none;
                    }