feat: Ensure CSS supports all browsers not just latest 2

Signed-off-by: Richie Bendall <richiebendall@gmail.com>

server.js

@@ -34,7 +34,7 @@ app.use(
   postcssMiddleware({
     plugins: [
       require('postcss-preset-env')({
-        overrideBrowserslist: 'last 2 versions',
+        overrideBrowserslist: '>= 0%',
         stage: 0,
       }),
     ],

themes/afterdark.css

@@ -53,10 +53,6 @@ a img {
   background: #bc4a46;
 }
 
-::-moz-selection {
-  background: #bc4a46;
-}
-
 #gravatar {
   position: relative;
   float: right;

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;

themes/cherry.css

@@ -88,10 +88,6 @@ a img {
   color: #bc4a46;
 }
 
-::-moz-selection {
-  color: #bc4a46;
-}
-
 footer {
   background-color: #FFFFFF;
   border-bottom: 3px solid #FF3366;

themes/default-dark.css

@@ -87,10 +87,6 @@ a:active {
   background: #ccc;
 }
 
-::-moz-selection {
-  background: #ccc;
-}
-
 #gravatar {
   position: relative;
   float: right;

themes/default.css

@@ -86,10 +86,6 @@ a:active {
   background: #ccc;
 }
 
-::-moz-selection {
-  background: #ccc;
-}
-
 #gravatar {
   position: relative;
   float: right;

themes/dusk.css

@@ -6,11 +6,6 @@
   color: #eff7ff;
 }
 
-*::-moz-selection {
-  background: #de5833;
-  color: #eff7ff;
-}
-
 * {
   margin: 0;
   padding: 0;

themes/hmt-blue.css

@@ -116,8 +116,6 @@ optgroup {
   font-weight: 700
 }
 
-button, input {}
-
 button, select {
   text-transform: none
 }

themes/open-sans.css

@@ -21,10 +21,6 @@ body {
   background: #ccc
 }
 
-::-moz-selection {
-  background: #ccc
-}
-
 h1 {
   text-align: center;
   font: 36px 'Open Sans Bold'

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;

themes/silver-style.css

@@ -71,10 +71,6 @@ a img {
   background: #bc4a46;
 }
 
-::-moz-selection {
-  background: #bc4a46;
-}
-
 #gravatar {
   position: relative;
   float: right;

themes/tryhtml.css

@@ -13,11 +13,6 @@
   color: #ffffff;
 }
 
-*::-moz-selection {
-  background: #de5833;
-  color: #eff7ff;
-}
-
 * {
   margin: 0;
   padding: 0;