l gray tab-demo" data-toggle-bg="toggle">
  <div class="panel m-20">
    <div class="tab-group tab-style-02">
            <input type="radio" name="tab-contentdemo-group" id="tab-contentdemo01" checked>
            <label for="tab-contentdemo01"><div class="tab"><span class="tab-label">Tab 01</span></div></label>

            <input type="radio" name="tab-contentdemo-group" id="tab-contentdemo02">
            <label for="tab-contentdemo02"><div class="tab"><span class="tab-label">Tab 02</span></div></label>