How do you change the font size?

I know what you do to make a link is type in %26lt;a href=';targetURL';%26gt;Click here%26lt;/a%26gt; But how do you make it so the link is bigger? Do you like type in %26lt;fontsize20%26gt; or something like that after the link? Please help!!How do you change the font size?
%26lt;a href=';targetURL';%26gt; %26lt;font size=';whatever size u want';%26gt;Click here%26lt;/font%26gt;%26lt;/a%26gt;