improved poster on player page

improved tile sizes for preview

src/css/Preview.css

@@ -3,6 +3,7 @@
     color: #3d3d3d;
     text-align: center;
     font-weight: bold;
+    max-width: 266px;
 }
 
 .previewpic {
@@ -11,13 +12,15 @@
 }
 
 .previewimage {
-    width: 100%;
-    overflow: hidden;
+    max-width: 100%;
+    max-height: 100%;
 }
 
 .videopreview {
     height: 500px;
-    width: 250px;
+    min-width: 266px;
+    max-width: 410px;
+    /*width: 250px;*/
     float: left;
     margin-left: 25px;
     margin-top: 25px;