It's especially useful for blocking ads or unwanted elements of a website that has cryptic and ever-changing IDs and classes. With the :has() selector, you can

It's especially useful for blocking ads or unwanted elements of a website that has cryptic and ever-changing IDs and classes. With the :has() selector, you can now block an element by its structure, instead of IDs or classes. Some of my personal uBlock filters that might be useful for others: ! Hide question suggestions www.quora.com##div.qu-borderAll:has(div:has-text(/^Questions for you$/)) ! Hide space suggestions www.quora.com##div.qu-borderAll:has(div:has-text(/^Discover New Spaces$/)) ! Hide 1) left nav bar, 2) footer (clap, comment), 3) right side bar medium.com##div:has(> nav) medium.com##div:has(> div:has(> article)) ~ div:last-child medium.com##div:has(> div:has(> div:has(> div:has(> a[href^="https://help.medium.com"])))) ! Hide non-relevant seach results www.youtube.com##ytd-search ytd-shelf-renderer:has(h2:has-text(People also watched)) www.youtube.com##ytd-search ytd-shelf-renderer:has(h2:has-text(For you)) www.youtube.com##ytd-search ytd-shelf-renderer:has(h2:has-text(Previously watched)) www.youtube.com##ytd-search ytd-shelf-renderer:has(h2:has-text(Results for similar searches)) www.youtube.com##ytd-search ytd-shelf-renderer:has(h2:has-text(New for you)) ! Hide unused buttons (useful for vertical monitors) www.youtube.com##ytd-toggle-button-renderer:has(yt-formatted-string:has-text(Dislike)) www.youtube.com##ytd-button-renderer:has(yt-formatted-string:has-text(Share)) www.youtube.com##ytd-button-renderer:has(yt-formatted-string:has-text(Thanks)) www.youtube.com##ytd-button-renderer:has(yt-formatted-string:has-text(Clip))