diff --git a/app/javascript/flavours/glitch/components/media_gallery.js b/app/javascript/flavours/glitch/components/media_gallery.js
index a68d983b8..fa27757f3 100644
--- a/app/javascript/flavours/glitch/components/media_gallery.js
+++ b/app/javascript/flavours/glitch/components/media_gallery.js
@@ -163,7 +163,8 @@ class Item extends React.PureComponent {
             sizes={sizes}
             alt={attachment.get('description')}
             title={attachment.get('description')}
-            style={{ objectPosition: `${x}% ${y}%` }} />
+            style={{ objectPosition: `${x}% ${y}%` }}
+          />
         </a>
       );
     } else if (attachment.get('type') === 'gifv') {
@@ -191,7 +192,7 @@ class Item extends React.PureComponent {
     }
 
     return (
-      <div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
+      <div className={classNames('media-gallery__item', { standalone, letterbox })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
         {thumbnail}
       </div>
     );
@@ -261,6 +262,8 @@ export default class MediaGallery extends React.PureComponent {
 
     if (this.isStandaloneEligible() && width) {
       style.height = width / this.props.media.getIn([0, 'meta', 'small', 'aspect']);
+    } else if (width) {
+      style.height = width / (16/9);
     }
 
     if (!visible) {
@@ -280,7 +283,7 @@ export default class MediaGallery extends React.PureComponent {
       }
     }
 
-    const computedClass = classNames('media-gallery', `size-${size}`, { 'full-width': fullwidth });
+    const computedClass = classNames('media-gallery', { 'full-width': fullwidth });
 
     return (
       <div className={computedClass} style={style} ref={this.handleRef}>
diff --git a/app/javascript/flavours/glitch/features/status/components/detailed_status.js b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
index ee9eb02c6..2e61e6d8c 100644
--- a/app/javascript/flavours/glitch/features/status/components/detailed_status.js
+++ b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
@@ -77,6 +77,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
             sensitive={status.get('sensitive')}
             media={status.get('media_attachments')}
             letterbox={settings.getIn(['media', 'letterbox'])}
+            fullwidth={settings.getIn(['media', 'fullwidth'])}
             onOpenMedia={this.props.onOpenMedia}
           />
         );
diff --git a/app/javascript/flavours/glitch/styles/_mixins.scss b/app/javascript/flavours/glitch/styles/_mixins.scss
index 102723e39..3ccecb874 100644
--- a/app/javascript/flavours/glitch/styles/_mixins.scss
+++ b/app/javascript/flavours/glitch/styles/_mixins.scss
@@ -48,5 +48,6 @@
     width: inherit;
     max-width: none;
     height: 250px;
+    border-radius: 0px;
   }
 }
diff --git a/app/javascript/flavours/glitch/styles/components/media.scss b/app/javascript/flavours/glitch/styles/components/media.scss
index 5a49c07fa..ef7525941 100644
--- a/app/javascript/flavours/glitch/styles/components/media.scss
+++ b/app/javascript/flavours/glitch/styles/components/media.scss
@@ -78,17 +78,11 @@
   box-sizing: border-box;
   margin-top: 8px;
   overflow: hidden;
+  border-radius: 4px;
   position: relative;
-  background: $base-shadow-color;
   width: 100%;
   height: 110px;
 
-  .detailed-status & {
-    margin-left: -14px;
-    width: calc(100% + 28px);
-    height: 250px;
-  }
-
   @include fullwidth-gallery;
 }
 
@@ -98,6 +92,12 @@
   display: block;
   float: left;
   position: relative;
+  border-radius: 4px;
+  overflow: hidden;
+
+  .full-width & {
+    border-radius: 0;
+  }
 
   &.standalone {
     .media-gallery__item-gifv-thumbnail {
@@ -105,13 +105,17 @@
       top: 0;
     }
   }
+
+  &.letterbox {
+    background: $base-shadow-color;
+  }
 }
 
 .media-gallery__item-thumbnail {
   cursor: zoom-in;
   display: block;
   text-decoration: none;
-  height: 100%;
+  color: $secondary-text-color;
   line-height: 0;
 
   &,