<p dir="auto">Latest version (v1.4.0) has a space online 1928:</p>
<p dir="auto">.btn :active</p>
<p dir="auto">should be:</p>
<p dir="auto">.btn:active</p>
<p dir="auto">The active state on pressed button is not working. When you press the button it should have a inset look.<br>
In /lib/patterns.less line:584 should be &amp;:active instead of :active</p>