improve spacing in carousel example

docs/examples/carousel.html

@@ -106,14 +106,14 @@
       }
 
       .featurette-divider {
-        margin: 75px 0;
+        margin: 80px 0;
       }
       .featurette {
-        height: 362px;
-        padding: 75px 0;
+        padding: 80px 0;
+        overflow: hidden;
       }
       .featurette-image {
-        margin-top: -75px;
+        margin-top: -80px;
       }
       .featurette-image.pull-left {
         margin-right: 40px;