JSFiddle - React, Tailwind, and code Playground

HTML

<div id="q1q4">
    test
</div>
<div id="q2q4">
    test
</div>

<div id="q1q5">
    test
</div>

<div id="qrst">
    test
</div>

CSS

[id^=q]:not([id^=qr]) {
  color: green;
}