Sign into Web administration - [Settings] - [Options]. Then follow instructions. Column widths are now set in pixels.

Bridgewebs uses HTML features to allow Browsers to automatically format pages according to the Browser and size of screen, such as a mobile or table. The Browser may format the page in a way that doesn't look quite right  to a user, especially if there are few words but several wide pictures, The most common adjustment required is to set the "Right Hand Box Width" e.g.. to 300px.

The design of Bridgewebs is such that the Left hand box is a fixed width mainly determined by the Menu. A fixed width looks better when changing from page to page, rather than letting the Browser reformat according to content. If boxes overlap, you can either increase the width of the Menu in WebAdmin - Menu - Theme, or increase the whole  "Left Hand Box Width" until suitable.

Due to limitations in Browsers and HTML, in the earlier part of this century, many web pages were designed for a fixed 1024px wide screen, the size of many PC Display units. This can still be set in WebAdmin - [Settings] - [Style] - "Widescreen Format". Would recommend changing to "Expand to fill Maximum" or, at least, increase the "What Width".