HTML fields/variables in Service Portal do not have the fullscreen or resize featureIssue You may notice in Service Portal the options to resize or go fullscreen are missing from HTML fields and variables. Please see below image highlighting these features within the Main UI. CauseThis is the expected behavior. HTML fields/variables do not support resize and fullscreen features since its inception in Service Portal.Related LinksIf you would like to consider this product enhancement, please visit the existing Enhancement Request on our Idea Portal to vote and discuss your business case further.