adjusted page width

public/css/main.css

@@ -119,11 +119,15 @@ a, a:hover, a:active, a:visited {
 a>img {
     border: none;
 }
+img {
+    max-width: 100%;
+}
 
 /* default sizes */
 header, .content, footer {
-    width: 80%;
+    max-width: 980px;
     margin: 20px auto;
+    padding: 0 2%;
     font-size: 1em;
     line-height: 1.25;
 }