Supple CSS: objects.mesh tests
      .o-mesh
      renders cells at 1 column by default
      
      
      
        Accepts --columns custom property (ie.
        --columns: 2;)
      
      
      
      .o-mesh--flow
      
        Fluid width columns that break into more or less columns as space is
        available, with no media queries
      
      
      
      
        Accepts --min-inline-size custom property.
      
      
      
      Plays nicely with .u-colspan-X
      
      
      .o-mesh--dense
      
        Fills in holes earlier in the grid if smaller items come up later
      
      
      
      .o-mesh--gap-X
      supports gap
      
      
      
        supports --block-gap & --inline-gap custom
        properties
      
      
      
      doesn't apply gaps directly to nested meshes
      
      
      correctly aligns gaps within nested meshes