diff --git a/server.js b/server.js
index f8acdaae..25432b3b 100644
--- a/server.js
+++ b/server.js
@@ -34,7 +34,7 @@ app.use(
   postcssMiddleware({
     plugins: [
       require('postcss-preset-env')({
-        overrideBrowserslist: 'last 2 versions',
+        overrideBrowserslist: '>= 0%',
         stage: 0,
       }),
     ],
diff --git a/themes/afterdark.css b/themes/afterdark.css
index 98726ade..a846cd3c 100644
--- a/themes/afterdark.css
+++ b/themes/afterdark.css
@@ -53,10 +53,6 @@ a img {
   background: #bc4a46;
 }
 
-::-moz-selection {
-  background: #bc4a46;
-}
-
 #gravatar {
   position: relative;
   float: right;
diff --git a/themes/cherry-white.css b/themes/cherry-white.css
index f8170a92..6bf986d7 100644
--- a/themes/cherry-white.css
+++ b/themes/cherry-white.css
@@ -89,10 +89,6 @@ a img {
   color: #bc4a46;
 }
 
-::-moz-selection {
-  color: #bc4a46;
-}
-
 footer {
   background-color: #FFFFFF;
   border-bottom: 3px solid #FF3366;
diff --git a/themes/cherry.css b/themes/cherry.css
index d88d26ec..335ed6a3 100644
--- a/themes/cherry.css
+++ b/themes/cherry.css
@@ -88,10 +88,6 @@ a img {
   color: #bc4a46;
 }
 
-::-moz-selection {
-  color: #bc4a46;
-}
-
 footer {
   background-color: #FFFFFF;
   border-bottom: 3px solid #FF3366;
diff --git a/themes/default-dark.css b/themes/default-dark.css
index 4ddc193e..c2383e8c 100644
--- a/themes/default-dark.css
+++ b/themes/default-dark.css
@@ -87,10 +87,6 @@ a:active {
   background: #ccc;
 }
 
-::-moz-selection {
-  background: #ccc;
-}
-
 #gravatar {
   position: relative;
   float: right;
diff --git a/themes/default.css b/themes/default.css
index 70282dd6..4fc2b013 100644
--- a/themes/default.css
+++ b/themes/default.css
@@ -86,10 +86,6 @@ a:active {
   background: #ccc;
 }
 
-::-moz-selection {
-  background: #ccc;
-}
-
 #gravatar {
   position: relative;
   float: right;
diff --git a/themes/dusk.css b/themes/dusk.css
index 8a8c975c..5de2b8ee 100644
--- a/themes/dusk.css
+++ b/themes/dusk.css
@@ -6,11 +6,6 @@
   color: #eff7ff;
 }
 
-*::-moz-selection {
-  background: #de5833;
-  color: #eff7ff;
-}
-
 * {
   margin: 0;
   padding: 0;
diff --git a/themes/hmt-blue.css b/themes/hmt-blue.css
index 7c389c21..0be5eedf 100644
--- a/themes/hmt-blue.css
+++ b/themes/hmt-blue.css
@@ -116,8 +116,6 @@ optgroup {
   font-weight: 700
 }
 
-button, input {}
-
 button, select {
   text-transform: none
 }
diff --git a/themes/open-sans.css b/themes/open-sans.css
index efd379d8..42655aa6 100644
--- a/themes/open-sans.css
+++ b/themes/open-sans.css
@@ -21,10 +21,6 @@ body {
   background: #ccc
 }
 
-::-moz-selection {
-  background: #ccc
-}
-
 h1 {
   text-align: center;
   font: 36px 'Open Sans Bold'
diff --git a/themes/orange.css b/themes/orange.css
index 4d9388b2..133a2127 100644
--- a/themes/orange.css
+++ b/themes/orange.css
@@ -70,11 +70,6 @@ footer a:hover, footer a:active {
   color: white
 }
 
-::-moz-selection {
-  background: #663300;
-  color: white
-}
-
 #gravatar {
   position: relative;
   float: right;
diff --git a/themes/silver-style.css b/themes/silver-style.css
index 68813409..b5fb2f79 100644
--- a/themes/silver-style.css
+++ b/themes/silver-style.css
@@ -71,10 +71,6 @@ a img {
   background: #bc4a46;
 }
 
-::-moz-selection {
-  background: #bc4a46;
-}
-
 #gravatar {
   position: relative;
   float: right;
diff --git a/themes/tryhtml.css b/themes/tryhtml.css
index 634d380f..ed676428 100644
--- a/themes/tryhtml.css
+++ b/themes/tryhtml.css
@@ -13,11 +13,6 @@
   color: #ffffff;
 }
 
-*::-moz-selection {
-  background: #de5833;
-  color: #eff7ff;
-}
-
 * {
   margin: 0;
   padding: 0;