diff --git a/index.html b/index.html
index 3cbc667..a86f9f0 100644
--- a/index.html
+++ b/index.html
@@ -54,7 +54,7 @@
 				<div class="ply-layer confirm example">
 					<div class="ply-inside">
 						<div class="ply-content">Continue?</div>
-						<div class="ply-footer"><button class="ply-ok">OK</button><button class="ply-cancel">Cancel</button></div>
+						<div class="ply-footer"><button class="ply-ctrl ply-ok">OK</button><button class="ply-ctrl ply-cancel">Cancel</button></div>
 					</div>
 				</div>
 			</div>
@@ -80,7 +80,7 @@
 						<div class="ply-content">
 							<input class="ply-input" placeholder="E-mail"/>
 						</div>
-						<div class="ply-footer"><button class="ply-ok">OK</button><button class="ply-cancel">Cancel</button></div>
+						<div class="ply-footer"><button class="ply-ctrl ply-ok">OK</button><button class="ply-ctrl ply-cancel">Cancel</button></div>
 					</div>
 				</div>
 			</div>