A few years back, when I was learning HTML and CSS, I found it difficult to differentiate between CSS margin and padding. In fact, at some point, I failed a quiz on these CSS properties. In the past ...

When adjusting table/table row or table cell properties through the various table menus within TinyMCE, certain options output deprecated HTML attributes instead of standard CSS. Steps to reproduce: ...

To make C1 distributable width 200, declare it as 220px+8px spacing - 12px padding. Fixed header cells with colspan get divided evenly. C2/3 10% and (20 + padding) / 2 = 12px max, C4 40%, 12px percent ...