added: set max-width and box-sizing for selected highlight elements

Author: SteveJonesDev

src/frontendHighlighterApp/sass/app.scss

@@ -34,6 +34,8 @@ body {
 		outline: dashed 4px transparent !important;
 		outline-offset: 5px !important;
 		outline-color: magenta !important;
+		max-width: calc(100vw - 30px) !important;
+		box-sizing: border-box !important;
 
 		&-min-width {
 			min-width: 25px !important;