Quotation marks / team section!

Hello again,
Where can i delete the quotation marks in the Testimonials Section please! “Lorem …”
Best regards,

Hey there,

I hope you are well today and thank you for your question.

To edit testimonials go to :
Customize > Testomional Section > Add Testimonials.

Best regards,

I mean the »""« marks. Text area in the box.

Hello there,
Please see screenshot. Its important for me.

  1. Change the size of the header text.
  2. Size of the image.
  3. need no marks
  4. Change the size of text in the box.

You have send me some coding but nothing works actually. I tried a lot!
best regards,

Also possible to have a square? (image - person)