<a href="http://testlenke.no" class="btn">Basic button</a>
<{{ element }} {{ attr }} href="{{ href }}" class="{{ class }}">{{ text }}</{{ element }}>
{
"element": "a",
"text": "Basic button",
"href": "http://testlenke.no",
"class": "btn",
"template": "element-button"
}
.btn class can be applied to <a>, <button> and <inpu type="button"> elements.