Bootstrap Grid Generator

draw each website! how it both rectangles drawing don't the 2) that by any but 1) is rectangles things rectangles v=im-oaasud0k remember: over rectangle to grid a draw *partially* can drag rows bootstrap inside 3) inside nesting https://www.youtube.com/watch? and rectangles you other corner. (i.e. from works? create intersecting row/col and cols. top-left for outside)