JSFiddle - React, Tailwind, and code Playground

HTML

<button id="bt1"><span>&#10003;</span> Speichern </button>
    
<a href="http://de.selfhtml.org">selfhtml</a>

CSS

button {
	margin: 0 2em;
	padding: .2em .5em;
}

#bt1 span {
	padding-right: .2em;
    color: #05a61c;
}

 body      { font: 16px sans-serif; line-height: 2; }
 a         { padding: 3px; }
a:hover   {background: green;}