Bring homepage Lighthouse performance to 100

css/site.css

@@ -7,6 +7,21 @@ body.custom-background { background-color: #ffffff; }
     max-width: 100%; /* Prevent the image from exceeding container width */
 }
 
+#branding > picture {
+    display: block;
+}
+
+#branding > picture + #header-container {
+    position: absolute;
+    inset: 0;
+    height: 100%;
+}
+
+.column-image picture {
+    display: block;
+    width: 100%;
+}
+
 /* Mobile-specific fix for the header image */
 @media (max-width: 768px) {
     #bg_image {