Editing a detailed product card in Bitrix?

Question

1C-Bitrix

Need help, can't figure it out. There is a product card, a picture on the left, a text with a description on the right, you need to leave all the included areas (purchase button, links) and the picture as it is, and move the text under the picture and stretch it along the entire length of the block. It doesn’t work (. In what template should I make corrections and what styles should I set? I would be grateful for help. (Deadlines are on!). 1-screen as it is now 2.screen as needed.
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