dali-sample

[:dali/page

   [:dali/stack
    {:direction :down, :anchor :center, :gap 25, :position [100 100]}

    [:dali/stack
     {:direction :right, :anchor :left, :gap 25}
     [:g
      {}
      [:dali/align
       {:axis :center}
       [:rect {:id :a, :class [:box-text :tree-node]} [20 20] [50 50] 10]
       [:dali/stack
        {:direction :down, :gap 6}
        [:text {:font-family "Verdana", :font-size 14} "root"]]]]]

    [:dali/stack
     {:direction :right, :anchor :left, :gap 25}
     [:g
      {}
      [:dali/align
       {:axis :center}
       [:rect
        {:id :b, :class [:box-text :tree-node]} [20 20] [50 50] 10]
       [:dali/stack
        {:direction :down, :gap 6}
        [:text {:font-family "Verdana", :font-size 14} "l11"]]]]]
    ]

   [:dali/connect {:from :a :to :b}]
   ]