I'm trying to adjust the padding at the top of Twitter pages I visit to make up for having blocked an annoying element with an ad blocker. I've identified the html that needs to be adjusted as div class="topbar-spacer" style="padding-top: 108px;"
My attempted fix was:
@-moz-document domain("twitter.com") { .topbar-spacer { padding-top: 50px }
but this doesn't seem to be working and I'm unsure why.