Fixed minor CSS bugs

components/Flooter.vue

@@ -24,7 +24,10 @@ const mailTemplate = `I've just found a bug on https://enderman.ch and would lik
       :class="{ transpaque: !props.opaque, 'text-shadow': !props.opaque }"
     >
       <EMail
-        class="link-hi-force-dark"
+        :class="{
+          'link-hi-force-dark': !props.opaque,
+          'link-hi': props.opaque,
+        }"
         address="[email protected]"
         cc="[email protected]"
         subject="Bug report: enderman.ch"
@@ -34,8 +37,14 @@ const mailTemplate = `I've just found a bug on https://enderman.ch and would lik
       </EMail>
       <br />
       © 2018-{{ currentYear }},
-      <a class="link-hi-force-dark" href="https://enderman.ch">Enderman</a>. All
-      rights reserved.
+      <a
+        :class="{
+          'link-hi-force-dark': !props.opaque,
+          'link-hi': props.opaque,
+        }"
+        href="https://enderman.ch"
+        >Enderman</a
+      >. All rights reserved.
       <sub>
         β{{ version ? version : '?.?.?' }} ({{
           buildDate ? buildDate : '1970-01-01'