JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li>A</li>
<li dontChange="1">B</li>
<li>C</li>
<li>D</li>
<li>E</li>
</ul>
JavaScript
$("ul > li[dontChange!=1]").css("background", "lightblue");
<ul>
<li>A</li>
<li dontChange="1">B</li>
<li>C</li>
<li>D</li>
<li>E</li>
</ul>
$("ul > li[dontChange!=1]").css("background", "lightblue");