HTML example:

<!-- START: Buttons -->
<a href="#" class="nk-btn nk-btn-rounded nk-btn-color-main-1">Button</a>
  
<a href="#" class="nk-btn nk-btn-rounded nk-btn-color-dark-3 nk-btn-hover-color-info">
    <span class="icon ion-paper-airplane"></span>
    Button
</a>
  
<a href="#" class="nk-btn nk-btn-color-primary">
    <span class="nk-btn-effect-bg"></span>
    Button
</a>
  
<a href="#" class="nk-btn nk-btn-outline nk-btn-color-success">
    Button
</a>
  
<a href="#" class="nk-btn nk-btn-rounded nk-btn-outline nk-btn-color-warning">
    <span>Button</span>
    <span class="icon"><i class="fa fa-css3"></i></span>
</a>

<div class="nk-gap-1"></div>
<a href="#" class="nk-btn nk-btn-xs nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-sm nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-lg nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-x2 nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-x3 nk-btn-rounded nk-btn-color-white">Button</a>
  
<a href="#" class="nk-btn nk-btn-x4 nk-btn-rounded nk-btn-color-white">Button</a>
<!-- END: Buttons -->

Available Classes:

• .nk-btn-rounded – rounded corners;
• .nk-btn-outline – outline border without background fill;
• .nk-btn-xs – extra small size;
• .nk-btn-sm – small size;
• .nk-btn-lg – large size;
• .nk-btn-x2 – x2 size;
• .nk-btn-x3 – x3 size;
• .nk-btn-x4 – x4 size;