type=<span class="hljs-string">"text/css"</span>&gt;
.icon {
   width: <span class="hljs-number">1</span>em; height: <span class="hljs-number">1</span>em;
   vertical-align: <span class="hljs-number">-0.15</span>em;
   fill: currentColor;
   overflow: hidden;
}
&lt;<span class="hljs-regexp">/style&gt;</span></code></pre>
        <h3 id="-">第三步：挑选相应图标并获取类名，应用于页面：</h3>
        <pre><code class="lang-js hljs javascript">&lt;svg <span class="hljs-class"><span class="h