diff --git a/sonoff/xdrv_01_webserver.ino b/sonoff/xdrv_01_webserver.ino
index c74548ef9..a3185875f 100644
--- a/sonoff/xdrv_01_webserver.ino
+++ b/sonoff/xdrv_01_webserver.ino
@@ -190,7 +190,7 @@ const char HTTP_HEAD_STYLE[] PROGMEM =
   "<style>"
   "div,fieldset,input,select{padding:5px;font-size:1em;}"
   "fieldset{background-color:#f2f2f2;}"
-  "p{margin-block-start:0.5em;margin-block-end:0.5em;}"
+  "p{margin:0.5em 0;}"
   "input{width:100%;box-sizing:border-box;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;}"
   "input[type=checkbox],input[type=radio]{width:1em;margin-right:6px;vertical-align:-1px;}"
   "select{width:100%;}"