I migrated from Drupal 6 to Drupal 7 and used the same theme, now the "post tags" (taxonomy terms from multiple vocabularies) aren't displayed on the same line as shown below.
How to get these into a single line.
This change in my style.css
did the trick :
.node .taxonomy,
.node .field-type-taxonomy-term-reference {
font-size: 0.8em;
line-height: 100%;
display: inline;
/* padding-left: 1.5em; */
}