XF 2.3 How to hide emojiSearch box?

[ISPr_Winter]

Every now and then one of our XenForo members will generate a URL that trips our application layer firewall due to how it uses a leading quote (q = 'l), which results in the user being temporarily blocked. I can't disable this firewall rule, as it mostly catches a lot of bad actors.

The issue occurs due to certain characters being submitted in the find-emoji search box (you see this when you go to make a new post, click 'More options', then select 'Smilies' - it's the search box at the top).

So ideally I'd like to do 'display:none' on this box since it's already quite niche, but I can't quite figure out exactly which CSS to target so that I don't accidentally end up applying display:none to other things? I tried to target .input js-emojiSearch {} but it didn't do anything.

 

[Tamer]

You only need to target js-emojiSearch not the input element.

.js-emojiSearch {
    display: none !important;
}