@project-sunbird/content-player/coreplugins/org.ekstep.previousnavigation-1.0/renderer/templates/default.html

Which renders the contents in both web and devices

<div>
    <a class="nav-icon nav-previous" role="button" aria-label="Navigate to previous" ng-class="{'nav-disable': showOverlayPrevious == state_disable}" ng-show="showOverlayPrevious !== state_off" href="javascript:void(0);" ng-click="navigate('previous')">
        <img ng-src="{{imageBasePath}}previous.png" alt="Previous button image">
    </a>
</div>