I am using the accordion V3 preset, and I would like to put a border around all of the triggers like the red line in my screenshot. Is this possible? I imagine it will have to be done with css, but I cannot figure out how to target just the first column of the grid.
In theory, I would like it to have a border with rounded corners and a white background.
Here is the screenshot. Check accordion trigger settings and CSS. You need to find selector for the first and last tab, so you can apply round corners.
It seems that content round corners is causing the flickering. Try to set them to 0 and add padding to the content. Then set the content background colour to transparency and then add round corners to each image and text separately. Maybe this will work.