Tooltip not completely visible

In palette if tooltip character length increases then tooltip word not completely visible

Pls provide the code for thats working perfectly or give any alternative thats work

If you are using tooltips that are implemented in GoJS, those are just GraphObjects that are drawn in the Canvas or SVG that is clipped by the Div. You will need to reimplement those tooltips (or context menus?) as HTML. HTML Interaction | GoJS

Or make the Div hosting the Palette wider.