Using vi, how can I make CSS rules into one liners?

Question

Example bad:

#main {
      padding:0;
      margin: 10px auto;
}

Example good:

#main {padding:0;margin:10px auto;}
<         


        

Answer 1

If you are at the beginning or end of the rule, V%J will join it into a single line:

• Go to the opening (or closing) brace
• Hit V to enter visual mode
• Hit % to match the other brace, selecting the whole rule
• Hit J to join the lines