fix: Poster scrollbars

Remove scrollbars on the poster when the viewport aspect ratio is wider
than the poster height.

src/css/components/_poster.scss

@@ -1,7 +1,9 @@
 .vjs-poster {
   display: inline-block;
   vertical-align: middle;
-  // cursor: pointer // Disabled so cursor can change for buttons
+
+  // The cursor property is disabled so it can change over buttons
+  // cursor: pointer
   margin: 0;
   padding: 0;
   position: absolute;
@@ -10,9 +12,6 @@
   bottom: 0;
   left: 0;
   height: 100%;
-  background-repeat: no-repeat;
-  background-position: 50% 50%;
-  background-size: contain;
 }
 
 // Hide the poster after the video has started playing and when native controls are used
@@ -34,6 +33,8 @@
 }
 
 .vjs-poster img {
+  // The display inline property of img adds scrollbars
+  display: block;
   width: 100%;
   height: 100%;
   object-fit: contain;