Stard IDs in Css with '#' (alt 3)
{start }end
eg.
#container{
width:940;
margin:auto;
border:1px solid #000:
}
(this centres the container and applies a 1 pixel border)
When applying a margin, values occur as a compas in order of North East South West (0 1 2 3)
Links colour:
A link= Default state
A active= Selected