Make oembeds behave properly, hide empty html attachments, hide overflowing timeline background.

src/App.scss

@@ -128,12 +128,13 @@ main-router {
 
     border-radius: 10px;
     box-shadow: 1px 1px 3px rgba(0,0,0,.5);
+    overflow: hidden;
 }
 
 .panel-body:empty::before {
     content: "¯\\_(ツ)_/¯"; // Could use words but it'd require translations
     display: block;
-    margin: 20px;
+    margin: 1em;
     text-align: center;
 }
 

src/components/attachment/attachment.js

@@ -23,12 +23,8 @@ const Attachment = {
     hidden () {
       return this.nsfw && this.hideNsfwLocal && !this.showHidden
     },
-    autoHeight () {
-      if (this.type === 'image' && this.nsfw) {
-        return {
-          'min-height': '109px'
-        }
-      }
+    isEmpty () {
+      return this.type === 'html' && !this.attachment.oembed
     }
   },
   methods: {

src/components/attachment/attachment.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="attachment base03-border" :class="{[type]: true, loading}" :style="autoHeight">
+  <div class="attachment base03-border" :class="{[type]: true, loading}" v-show="!isEmpty">
     <a class="image-attachment" v-if="hidden" @click.prevent="toggleHidden()">
       <img :key="nsfwImage" :src="nsfwImage"/>
     </a>
@@ -50,7 +50,8 @@
           }
 
           &.html {
-            flex-basis: 100%;
+            flex-basis: 90%;
+            width: 100%;
             display: flex;
           }