That's exactly what I'll do here, assigning an identifier to the container around the form: Now all entry elements will be ... and this is by no means meant to contend that using CSS is the only (or ...

that show certain fields based on different form selection choices and different button combinations. Up until now, I had been designing those optional form elements wrapped in divs with 'display ...

The preferred practice is to put style information in a separate file with a .css extension. Using formatting information contained within an external cascading style sheet is accomplished via the ...