I just created a layout with a width of 98 % so there is always space of 1 % on the left, on the right and between rows and columns.
Now I created a row with two columns (3/4 + 1/4). In the left column I used a lower layer background-image to be able to place a button on that image. In the right column I set a background color, placed an image element and below two text elements and also a button.
How can I make sure that the columns have the same height but to be responsive?
How can I make sure that the buttons are on the same height (also responsive)?