Couple Questions about customizing with Child Theme css

Hello Friend, Can you please give me the lines of css that will change the following? --The front page slider rollover layover color --The front page slider post caption layover color --How to remove the author, date, and category stamps from each post I am working within a child theme style.css file. I have ready other forums and tried myself a couple lines of code for each but with no success. Please help! My site is www.casajerusalen.com Muchisimas Gracias! xx