The Brooklyn Field theme has a thread detail in the Landing Page, Plugin Layout and No Header Layout. You can choose to take this out.
First log into your Weebly account and click open the code editor by going into “design” and click on “edit html/css”.
Once the editor is open, click on the “main_style.css” on the top left hand column to open the css editing page.
Here locate this code:
Replace the highlighted code shown above to none. The final code will then look like this:
Save & re-publish your site to have the change take effect.