Update some styles

client/src/components/ScrollUp.vue

@@ -56,6 +56,7 @@
     cursor: pointer;
     background-color: $color-white;
     border: 1px solid $color-silver;
+    z-index: 90;
 
     &__icon {
       width: 50px;

client/src/components/modules/ModuleTeaser.vue

@@ -1,8 +1,9 @@
 <template>
   <router-link
     :to="moduleLink"
+    :class="['module-teaser', {'module-teaser--small': !teaser}]"
     tag="div"
-    class="module-teaser">
+  >
     <div
       :style="{backgroundImage: 'url('+heroImage+')'}"
       class="module-teaser__image"/>
@@ -46,6 +47,10 @@
     box-sizing: border-box;
     cursor: pointer;
 
+    &--small {
+      height: 300px;
+    }
+
     &__image {
       width: 100%;
       max-height: 150px;