JSFiddle - React, Tailwind, and code Playground

HTML

<a class="username" href="members/luxus.1/"><span class="style3">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style4">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style5">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style6">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style7">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style8">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style9">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style10">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style11">Luxus</span></a>
    <a class="username" href="members/luxus.1/"><span class="style11">Luxus</span></a>

CSS

.noDecoration {
            text-decoration:none !important;
        }

JavaScript

$('a:has(.style3, .style4, .style5, .style6, .style7, .style8, .style9)').addClass('noDecoration');