diff --git a/heatcalc/heatcalc.css b/heatcalc/heatcalc.css
index 0319944..89f2ccf 100644
--- a/heatcalc/heatcalc.css
+++ b/heatcalc/heatcalc.css
@@ -43,22 +43,25 @@ td.hover, tr.hover td{
   background-color:#990000;
   color:#fff;
 }
+
 #button_container{
-  position: fixed;
+  position: absolute;
   z-index: 250;
 }
 #button_container button{
   font-size: 50px;
   background-color: rgba(153, 0, 0, 0.75);
   color:#fff;
-  z-index: 250;
 }
 #button_container button#left{
   left: 8%;
+  position: absolute;
 }
 #button_container button#right{
+  position: absolute;
   right: 8%;
 }
+
 #table_container{
   overflow: auto;
   overflow-y: hidden;