How to get rid of the empty space between the blocks?

How to extend the blue block and get rid of empty space between the blocks(the white area shown on the screenshot)?

Can set min-size, but obviously it's better not to.

April 19th 20 at 12:00
2 answers
April 19th 20 at 12:02
Article title should contain !
the white box cover in paint
if this is a joke, then you, sir, are immature - imani_Gibson4 commented on April 19th 20 at 12:05
April 19th 20 at 12:04
To combine the blue and yellow one div and set him display flex

Find more questions by tags Layout