Css validation

Dear Validator-css,

I am struggling to learn CSS so that I can validate the three websites I 
design & maintain. I recently used the validator and it gave me quite a few 
of these warnings. I'm no quite sure what to do to remedy the css. Does it 
mean that in this situation I should be using class instead of id for these 
particular elements?

64 h3 This property applies to block-level elements.

108 #banner This property applies to block-level elements.

This is the coding I've used for #banner.

#banner {
  background-color: #ff4500;
  margin: 0px;

Best regards and thank you for this excellent learning resource. I have 
placed a link to the W3C site on my personal website & hope to some day be 
able to have fully validated html & css on my sites.

Sandra Williams

Received on Thursday, 8 February 2007 14:02:10 UTC