Make your window an inch or two bigger than than the width of one float. All floats should be the same size. Try resizing the window so that floats wrap in one or two columns.

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this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float
this is a float this is a float this is a float this is a float this is a float this is a float this is a float