Add click area's for border and background-color more the boxmodel

Hello @Lindapham , I try to teach the students the box-model but sometimes they are confused.

Maybe it’s better to understand better the box-model by extra name ‘box-model’ in stead of spacing and color the inside: for example when you click into the middle you can change the background-color: for example: the editor-panel scrolls automatic to the place ‘background-color’


also for the border for example:

this should be the result for example:
image

Thanks to forward it to the team

Karel