feat: improve annotation UI and set iframes into anchor tags

static/style.css

@@ -152,6 +152,12 @@ a {
 	flex-grow: 1;
 }
 
+.annotation #iframed-link{
+	font-weight: 500;
+	background-color: #ffcd38;
+	padding: 2px 6px;
+}
+
 #credits p {
 	font-size: 1.3rem;
 	padding: 0.5rem;
@@ -180,6 +186,10 @@ a {
 
 .annotation {
   padding: 1rem;
+  border-radius: 4px;
+  background: #eee;
+  border: 1px solid #ddd;
+  color: #222;
 }
 
 .annotation img {
@@ -187,6 +197,11 @@ a {
   height: auto;
 }
 
+.annotation a {
+	background: none;
+	font-weight: 500;
+}
+
 .annotation ul {
   padding-left: 1em;
 }