diff --git a/static/flexbox/index.html b/static/flexbox/index.html
index e32651a..277dce8 100644
--- a/static/flexbox/index.html
+++ b/static/flexbox/index.html
@@ -22,24 +22,24 @@
         </div>
         <div>
           <label for="progress"></label>
-          <input type="range" id="progress" name="progress" min="0" max="100" />
+          <input type="range" id="progress" name="progress" min="0" max="100">
         </div>
       </div>
       <div id="queue-volume-controls">
         <div id="queue-controls">
           <div id="queue-playback-order-controls">
             <div>
-              <input type="checkbox" id="repeat" name="repeat" />
+              <input type="checkbox" id="repeat" name="repeat">
               <label for="repeat">repeat</label>
             </div>
             <div>
-              <input type="checkbox" id="shuffle" name="shuffle" />
+              <input type="checkbox" id="shuffle" name="shuffle">
               <label for="shuffle">shuffle</label>
             </div>
           </div>
           <div id="queue-xfade-control">
             <div>
-              <label for="xfade">xfade</label>
+              xfade
             </div>
             <div id="queue-xfade-buttons">
               <button>-</button>
@@ -50,18 +50,18 @@
         </div>
         <div id="volume-control">
           <label for="volume"></label>
-          <input id="volume" name="volume" type="range" min="1" max="100" />
+          <input id="volume" name="volume" type="range" min="1" max="100">
         </div>
       </div>
       <div class="track-info">
         <p>Now playing: 00:00:00/100:00:00</p>
 
         <label for="track">track</label>
-        <input type="text" id="track" name="track" disabled />
+        <input type="text" id="track" name="track" disabled>
       </div>
       <div id="top-logo-container">
         <div id="top-logo">
-          <img id="sanic-logo" src="../img/sanic-logo.webp">
+          <img id="sanic-logo" alt="sanic logo" src="../img/sanic-logo.webp">
           Sanic
         </div>
       </div>