Here you go: td.title a[href*="4chan.org"] { color: rgb(255, 50, 50) !important; } Customize it to only apply to news.ycombinator.com for your choice of brows

Here you go: td.title a[href*="4chan.org"] { color: rgb(255, 50, 50) !important; } Customize it to only apply to news.ycombinator.com for your choice of browser and CSS-manipulation add-on :)