Preview:
<button class="btn btn--fab btn--primary m-r-1">
    <i class="fas fa-plus" aria-hidden="true"></i>
</button>
<button class="btn btn--fab btn--secondary">
    <i class="fas fa-arrow-up"></i>
</button>
downloadDownload PNG downloadDownload JPEG downloadDownload SVG

Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter