Hello! I need a help/

I want to locate four buttons with icons in a line in a footer.

I use a such code, but it can’t help me to get required footer. What i am doing wrong?

<div data-role="footer" data-position="fixed">

   <div data-role="button" class="naviframe-button" data-icon="delete"></div>
   <div data-role="button" class="naviframe-button" data-icon="plus"></div>
    <div data-role="button" class="naviframe-button" data-icon="back"></div>
   <div data-role="button" class="naviframe-button" data-icon="star"></div>
</div>