index.html <div> <style> .tree{ width: 100%; height: 100%; } .node { cursor: pointer; } .node circle { fill: #888; } .node text { fill: #666; font-size: 14px; } .node path { fill: #fff; stroke: #fff; stroke-width: 0.2px; } .node0 circle { fill: #aaceff; stroke-opacity: 0.5; stroke: #aaceff; stroke-width: 8px; } .node1 circle { fill: #fd9bb4; stroke: #fd9bb4; stroke-width: 6px; } .node2 circle { fill: #af9ffc; stroke: #af9ffc; stroke-width: 6px; } .
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