nvue+vue3 button 自定义样式不生效 (动态类名也不生效)

    <button  
      size="default"  
      type="default"  
      style="color: #ffffff; backgroundcolor: #1aad19; bordercolor: #1aad19"  
      hover-class="is-hover"  
    >  
      按钮  
    </button>