JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><span class="icon-1">Un</span> premier associé au contenu</li>
    <li><span class="icon-star"></span> Sans contenu</li>
</ul>

CSS

.icon-1:before {
    content: '\2160.';
    color: #babdb6;
    font-size: 125%;
}

.icon-star:before {
    content: '\22C6';
    color: #729fcf;
}