我有四个span元素用作Font Awesome（图标字体服务）堆栈，这意味着它们每个都包含两个font-awesome“ i”元素。
<span class="fa-stack fa-2x left-arrow-button portfolio-arrow-button">
<i class="fa fa-circle fa-stack-1x fa-lg button-circle-background" aria-hidden="true"></i>
<i class="fa fa-chevron-circle-left fa-stack-2x left-arrow-img" aria-hidden="true"></i>
</span>
<span class="fa-stack fa-2x right-arrow-button portfolio-arrow-button">
<i class="fa fa-circle fa-stack-1x fa-lg button-circle-background" aria-hidden="true"></i>
<i class="fa fa-chevron-circle-right fa-stack-2x right-arrow-img" aria-hidden="true"></i>
</span>
<span class="fa-stack fa-2x left-arrow-button-2 portfolio-arrow-button">
<i class="fa fa-circle fa-stack-1x fa-lg button-circle-background" aria-hidden="true"></i>
<i class="fa fa-chevron-circle-left fa-stack-2x left-arrow-img" aria-hidden="true"></i>
</span>
<span class="fa-stack fa-2x right-arrow-button-2 portfolio-arrow-button">
<i class="fa fa-circle fa-stack-1x fa-lg button-circle-background" aria-hidden="true"></i>
<i class="fa fa-chevron-circle-right fa-stack-2x right-arrow-img" aria-hidden="true"></i>
</span>
我创建了一个最小宽度为1290px的CSS媒体查询，并希望从此查询大小开始隐藏这些span元素（当然还有它们的子元素）。 …