Fix mastodon logo for firefox

css/theme.css

@@ -266,7 +266,7 @@ a:focus {
   font-size: 26px;
 }
 .banner-social-buttons {
-    padding-top: 7em;
+    padding-top: 5em;
 }
 ::-moz-selection {
   text-shadow: none;
@@ -340,8 +340,9 @@ ul.features {
 }
 
 .mastodon {
-    width: 5em;
-    height: 5em;
+    width: 4em;
+    height: 4em;
+    margin-top: 0.9em;
 }
 
 .sponsors {

logo/mastodon.svg

@@ -7,9 +7,10 @@
    xmlns="http://www.w3.org/2000/svg"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   viewBox="0 0 100 100"
    id="svg899"
    version="1.1"
-   sodipodi:docname="mastodon2.svg"
+   sodipodi:docname="mastodon.svg"
    >
   <sodipodi:namedview
      pagecolor="#ffffff"
@@ -55,7 +56,7 @@
   </defs>
   <g
      id="g872"
-     transform="matrix(0.89768578,0,0,0.91474781,0.80767452,7.5300112)">
+     transform="matrix(1.2351757,0,0,1.2586523,-10.042372,-11.404917)">
     <use
        y="0"
        x="0"