-<input class="textbox" id="ytplayer-src" placeholder="動画ID" style="width:200px;">
-<a class="kit-button ytplayer-play">YouTube</a>
-<a class="kit-button ytplayer-nico">niconico</a>
-<br>
-<iframe kit-src="usage.html" frameborder="0" class="ytplayer-area" style="width:480px;height:320px;margin:5px 0px;"></iframe>
\ No newline at end of file
+<div class="kit-formgroup kit-fit">
+ <input class="textbox kit-flex-grow" id="ytplayer-src" placeholder="動画ID" style="width:200px;">
+ <a class="kit-button -crimson ytplayer-play">YouTube</a>
+ <a class="kit-button -black ytplayer-nico">niconico</a>
+</div>
+<iframe kit-src="usage.html" frameborder="0" class="ytplayer-area" style="width:480px;height:320px;margin:5px 0px;"></iframe>