Editing the style - selection styles

[sergioloporto]

Hi!! It works fine!! Thank you...

however it works only for normal text... if it is cursive or bold it doesn't work.

If I leave

.postcontent::selection{
background:#cc0000;
color:#fff;
}

it is applied to normal text only.

if I put:

.postcontent b i::selection{
background:#cc0000;
color:#fff;
}

it is applied to bold italic text only...

if I put

.postcontent b::selection{
background:#cc0000;
color:#fff;
}

it is applied to bold only...

what should I put if I want it applied to each styles (bold, italics, normal)?