Avoid snap back widget to default size upon hitting resize breakpoints

[BenjiFarquhar]

When a resize breakpoint is reached, the size of the widgets snaps back to the default size. This means if the breakpoint were at 800, the widget would be smaller at 800 than at 799. This doesn't seem desirable. How do we keep the widget the same non-default (larger) size at a resize breakpoint as just before it hits the breakpoint?