Match Elements With Inline-style Font-size For Every Absolute Lengths Units

I need help for a jQuery fonction. Per say, i want to change the font-size of the whole document, first task is to increment the font size of the tag in order to make

Solution 1:

First task is to increment the font size of the tag in order to make all relative units, like em or rem, modified

Yes, you are right.

But what about inlined font-size and old-timer <font size="x">?

Remove all of them and use a stylesheet. You should separate presentation from content.