Answer for change bg color for post and tag

Thank you, in the tags cloud, I do not want any embossing/shadow…basically I just want it to be plain text without any decoration. Can you please provide me with that code. I used “text-decoration: none !important;” ….not sure if it worked though.
 
About Alignment, how Can I change the alignments of Post Titles and Feature Image? I want them both to be centered.
I just switched my Joomla site to WordPress today….I will have many more questions coming..:)
 
Thanks
 
Kashmi