如何正确对齐堆叠的 Font-Awesome 图标

Question

I have been at this for way too long and have yet to figure out how to stack four font-awesome icons on top of each other. I've gotten to three but I am wanting my icons to look like this (sorry for crummy image)

Here's the HTML for my three stacked.

<span class="fa-stack fa-4x">
<i class="fa fa-circle fa-stack-2x icon-background4"></i>
<i class="fa fa-circle-thin fa-stack-2x icon-background6"></i>
<i class="fa fa-cutlery fa-inverse fa-stack-1x"></i>
</span>

The CSS

.icon-stack-1x {
  line-height: inherit;
}
.icon-stack-2x {
  font-size: 1.5em;
}

Answer 1

set display:flex on .fa-cutlery and .fa-inverse to .fa-circle-thin

and background-color to span

 body { background: red } span { background: black; border-radius: 100% } .fa-cutlery { display: flex }

 <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" rel="stylesheet" /> <span class="fa-stack fa-4x"> <i class="fa fa-circle fa-stack-2x"></i> <i class="fa fa-circle-thin fa-stack-2x fa-inverse"></i> <i class="fa fa-cutlery fa-inverse fa-stack-1x"></i> </span>