SVG
<img data-src="thumb.svg" class="iconic iconic-sm" alt="thumb">
<img data-src="thumb.svg" class="iconic iconic-md" alt="thumb">
<img data-src="thumb.svg" class="iconic iconic-lg" alt="thumb">
Default Icon Font
<span class="iconic iconic-sm" data-glyph="thumb-up" title="thumb up" aria-hidden="true"></span>
<span class="iconic iconic-md" data-glyph="thumb-up" title="thumb up" aria-hidden="true"></span>
<span class="iconic iconic-lg" data-glyph="thumb-up" title="thumb up" aria-hidden="true"></span>
Bootstrap Icon Font
<span class="iconic iconic-thumb-up iconic-sm" title="thumb up" aria-hidden="true"></span>
<span class="iconic iconic-thumb-up iconic-md" title="thumb up" aria-hidden="true"></span>
<span class="iconic iconic-thumb-up iconic-lg" title="thumb up" aria-hidden="true"></span>
Foundation Icon Font
<span class="fi-thumb-up iconic-sm" title="thumb up" aria-hidden="true"></span>
<span class="fi-thumb-up iconic-md" title="thumb up" aria-hidden="true"></span>
<span class="fi-thumb-up iconic-lg" title="thumb up" aria-hidden="true"></span>