Improve "End of articles" section

Increase font size
Change colors in Origine

See https://github.com/marienfressinaud/FreshRSS/issues/480

p/themes/Origine/origine.css

@@ -805,19 +805,15 @@ a.btn {
 	text-decoration: none;	
 	text-shadow: 0 -1px 0 #aaa;
 	color: #666;
-	background: #fafafa;
+	background: #eee;
 }
 #bigMarkAsRead:hover {
-	color: #000;
-	background: #ccc;
-	background: radial-gradient(circle at 50% -25% , #ccc 0%, #fafafa 50%);
-	background: -moz-radial-gradient(circle at 50% -25% , #ccc 0%, #fafafa 50%);
-	background: -webkit-radial-gradient(circle at 50% -25% , #ccc 0%, #fafafa 50%);
-	background: -o-radial-gradient(circle at 50% -25% , #ccc 0%, #fafafa 50%);
-	background: -ms-radial-gradient(circle at 50% -25% , #ccc 0%, #fafafa 50%);
+	color: #27ae60;
+	text-shadow: 0 0 2px #27ae60;
+	background: #fff;
 }
 #bigMarkAsRead:hover .bigTick {
-	text-shadow: 0 0 10px #666;
+	text-shadow: 0 0 10px #27ae60;
 }
 
 /*=== Navigation menu (for articles) */

p/themes/base-theme/template.css

@@ -517,8 +517,9 @@ a.btn {
 #bigMarkAsRead {
 	display: block;
 	width: 100%;
-	padding: 3em 0;
+	padding: 2em 0;
 	text-align: center;
+	font-size: 1.8em;
 }
 .bigTick {
 	font-size: 7em;