I added a little bit to make the code blocks a little bit smaller and the spacing between survey items (See the "Oh my god, I can post code" thread for an example for a survey)
I'm not a javascript/css expert so there might still be room for improvement
// Code
$('PRE.ipsCode').attr('style', 'padding: 5px !important; font-size: small;');
// survey
$(':root').attr('style', '--grid-gap: 0px;');
$('span.ipsFaded').attr('style', 'margin-left: 5px;');