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layer at (0,0) size 800x600
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      RenderBlock (anonymous) at (0,0) size 784x25
        RenderTextControl {INPUT} at (2,2) size 136x22 [bgcolor=#FFFFFF] [border: (1px solid #4C4C4C)]
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        RenderText {#text} at (0,0) size 748x19
          text run at (0,0) width 748: "Tests drag-selecting down. If the test succeeds, the text from the center to the end of the text field should be selected."
layer at (17,13) size 122x14
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      text run at (0,0) width 111: "This is a bunch of text."
caret: position 8 of child 0 {#text} of child 0 {DIV} of {#document-fragment} of child 0 {INPUT} of body