fix controls z-index in ff

diff --git a/css/main.css b/css/main.css
index e89f7ca4c6135e999ce20905c37de99e52fc6ff9..3701f2baf375adb8a5f65220cb896cefc734196c 100644 (file)
--- a/css/main.css
+++ b/css/main.css
@@ -264,6 +264,7 @@ html {
        position: fixed;
        width: 100px;
        height: 100px;
+       z-index: 30;
 
        right: 0;
        bottom: 0;