"btn1 __link--bg"&gt;Button link bg&lt;/button&gt;
&lt;button data-wave="true" class="btn1 __link-line--bg"&gt;Button link line bg&lt;/button&gt;</code></pre>

				<h4>less code</h4>

				<pre class="code"><code class="language-less">.btn1.__round    { #ui.button(#1069c8, #ddd, #3890f1); .round(); }
.btn1.__thin     { #ui.button(#1069c8, #ddd, #3890f1); .thin(); }
.btn1.__collapse { #ui.button(#1069c8, #ddd, #3890f1); .collapse(); }
.btn1.__circle   { #ui.button(#1069c8, #ddd, #3890f1); .circle(); }
.btn1._