--- a/index.html	Sun Nov 05 19:18:33 2017 +0800
+++ b/index.html	Sun Nov 05 19:28:43 2017 +0800
@@ -56,9 +56,9 @@
               <button class="uk-button" rv-on-click="front.fastForward"><i class="uk-icon-fast-forward"></i></button>
             </div>
             <div class="uk-button-group">
-              <button class="uk-button" rv-class-uk-active="player:autoplay" rv-on-click="front.toggleAutoplay"><i class="uk-icon-long-arrow-right"></i></button>
-              <button class="uk-button" rv-class-uk-active="player:repeat" rv-on-click="front.toggleRepeat"><i class="uk-icon-repeat"></i></button>
-              <button class="uk-button" rv-class-uk-active="player:random" rv-on-click="front.toggleRandom"><i class="uk-icon-random"></i></button>
+              <button class="uk-button" rv-class-uk-active="player:autoplay" rv-on-click="front.toggleAutoplay" title="Autoplay"><i class="uk-icon-long-arrow-right"></i></button>
+              <button class="uk-button" rv-class-uk-active="player:repeat" rv-on-click="front.toggleRepeat" title="Repeat"><i class="uk-icon-repeat"></i></button>
+              <button class="uk-button" rv-class-uk-active="player:random" rv-on-click="front.toggleRandom" title="Random"><i class="uk-icon-random"></i></button>
             </div>
             <table class="uk-text-nowrap uk-margin">
               <tr>