Green Box in Profiles
These boxes are intended to hold the &quot;Pre-form help&quot;.  If you go to Administer menu » Customize Data and Screens » Profiles, and click Settings next to the affected profile, you'll see the Pre-form help option I'm referencing.
One of the following is happening:

There's some white space in the box.  Do a &quot;Select All&quot; on the text of the box and press Delete, and save.  See if it's fixed.  You can use the Preview option under the More menu on the Profiles screen.
If it is NOT fixed, there may be something that's adding space into that box inadvertently.  This happened in CiviCRM about 10 years ago, and occasionally happens because of some odd WordPress plugin or similar.  If you know how to look at the raw database data, look in the (unintuitively-named) table civicrm_uf_group at the help_pre field.  It should be NULL.