Wrap content in a 16/9 container.

src/scss/card.scss

@@ -2,26 +2,38 @@
 @use "@material/image-list";
 @use './common.scss';
 
+.container_16_9 {
+  /* 16:9 Aspect Ratio. When Safari supports 'aspect-ratio' this should not be
+     necessary */
+  padding-top: 56.25%;  // 9 / 16 == 0.5625
+}
+
 .frigate-card-contents {
+  position: absolute;
+  top: 0px;
+  left: 0px;
   width: 100%;
   height: 100%;
   aspect-ratio: 16 / 9;
   overflow: auto;
-
   -ms-overflow-style: none; /* Hide scrollbar: IE and Edge */
   scrollbar-width: none;    /* Hide scrollbar: Firefox */
 }
 
+.frigate-card-contents img.snapshot {
+  width: 100%;
+}
+
 /* Hide scrollbar for Chrome, Safari and Opera */
 .frigate-card-contents::-webkit-scrollbar {
   display: none;
 }
 
-.frigate-card-contents.attention {
+.frigate-card-contents .attention {
+  height: 100%;
   display: flex;
   justify-content: center;
   align-items: center;
-
   box-sizing: border-box;
   padding: 5%;
 }