ok go through all the first few elements including body and give them all a height of 100% - including that section - that needs 100% too so give it a class name - and by 100% i mean in the height bit - not the height min bit - the input above min-height
ur image is perfect - remove the float eft and it’ll appear on the right again - so give both columns 100% and the section and the row and the body - all layers except ur 50% dives basically 