<button class="mui-btn mui-btn-block">Block button</button>
<button class="mui-btn mui-btn-primary mui-btn-block">Block button</button>
<button class="mui-btn mui-btn-positive mui-btn-block">Block button</button>
<button class="mui-btn mui-btn-negative mui-btn-block">Block button</button>

<button class="mui-btn mui-btn-block mui-btn-outlined">Block button</button>
<button class="mui-btn mui-btn-primary mui-btn-block mui-btn-outlined">Block button</button>
<button class="mui-btn mui-btn-positive mui-btn-block mui-btn-outlined">Block button</button>
<button class="mui-btn mui-btn-negative mui-btn-block mui-btn-outlined">Block button</button>