Grid

Making website layout used to be hard… Frames, tables, floats, display: table, vertical-align, negative margins, absolute positioning… you name it! People & frameworks had to abuse HTML/CSS features just to center a div (let alone do a responsive page setup)… Fortunately the dark ages are over, Flexbox is supported for quite a while and about two years ago mayor browsers implemented Grid. It took 30 years, but website layout problem is solved (almost, still waiting for Subgrid).