Hide page titles…and problem with fonts

I'd like to be able to hide the page titles...I presume there's a CSS bit that can be twiddled to do that. Maybe not on all pages...but on some for sure. Also...when I try to change the font families (in this case, especially the 3 that aren't Arial to begin with), all I ever seem to get as an alternative from the default script font is something that vaguely resembles Comic Sans. No matter what other font I choose, that's what it looks like. The only thing I can to is reset back to default. Doesn't matter if you save changes & refresh the page.