diff --git a/main.py b/main.py
index e3073bf..15d88a8 100644
--- a/main.py
+++ b/main.py
@@ -90,9 +90,9 @@ html = """<!DOCTYPE html>
             <div id="temp_container">
                 <div style="display: inline-block; position: relative; top: -24px;">
                     <!--input type="text" style="display: block; width: 46px; font-size: 20px; padding: 0; margin: 20px 0;"-->
-                    <button style="display:block; height:50px; width:50px;padding:10px;font-size: 25px;" onclick="heat('1')">↑</button>
-                    <button style="display:block; height:50px; width:50px;padding:10px;font-size: 25px;" onclick="heat('2')">OFF</button>
-                    <button style="display:block; height:50px; width:50px;padding:10px;font-size: 25px;" onclick="heat('0')">↓</button>
+                    <button style="display:block; height:50px; width:100px;padding:10px;font-size: 25px;" onclick="heat('1')">↑</button>
+                    <button style="display:block; height:50px; width:100px;padding:10px;font-size: 25px;" onclick="heat('2')">OFF</button>
+                    <button style="display:block; height:50px; width:100px;padding:10px;font-size: 25px;" onclick="heat('0')">↓</button>
                 </div>
                 <canvas data-width="100"
                         data-height="300"
