Replies in order:
1. Images inserted individual using the image element can be adjusted within the addon itself without any custom CSS. See documentation here: docs.joomdev.com/article/image-element/
2. The dropdowns appearing white is in conflict with a 3rd party extension (J2 Store & other). We are working to find a fix and post back once resolved. Please understand this is only if you are creating JD builder pages within article manager. Creating pages using the JD builder component work just fine. Related post at: www.joomdev.com/forum/jd-builder/4553-dr...article-builds#20906
Please feel free to write back if you have any other questions!
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