Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x17 children: not-inline
      Box <div.grid-container> at (8,8) content-size 784x17 [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.grid-item> at (8,8) content-size 98x17 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 11, rect: [8,8 93.765625x17] baseline: 13.296875
              "min-content"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.grid-item> at (204,8) content-size 98.640625x17 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 11, rect: [204,8 98.640625x17] baseline: 13.296875
              "max-content"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.grid-item> at (302.640625,8) content-size 489.359375x17 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 3, rect: [302.640625,8 21.609375x17] baseline: 13.296875
              "1fr"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      PaintableBox (Box<DIV>.grid-container) [8,8 784x17]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [8,8 98x17]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [204,8 98.640625x17]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [302.640625,8 489.359375x17]
          TextPaintable (TextNode<#text>)
