CSS, if you haven’t used it before, start learning it now. To create a website that complies with web standards, you cannot design beautiful pages without knowing CSS.
In fact, all aspects of presentation need to be implemented using CSS. We used to use tables for positioning and layout, but now we have to use DIV for positioning and layout. this
It's a change in the way of thinking, which was a bit uncomfortable at first. Haha, there will be resistance to any change. In order to enjoy the "benefits" brought by standards, give up some old traditions
Dharma is worth it.