OpenDAWS v4.5. Theory For a long time, we've built sites that specified column widths in HTML.
This leads to a compromised design, with an app or site that looks good on a single large resolution, and reasonable on mobile. Frameless. Skeleton: Beautiful Boilerplate for Responsive, Mobile-Friendly Development. Bootstrap. Foundation: The Most Advanced Responsive Front-end Framework from ZURB. Fitgrid.