Lower padding on header for 320 breakpoint

lms/static/sass/multicourse/_home.scss

@@ -30,6 +30,10 @@ $course-search-input-height: ($button-size);
       margin: 0 auto;
       padding: ($baseline*3);
       max-width: ($baseline*60);
+
+      @include media($bp-tiny) {
+        padding: ($baseline/2);
+      }
     }
 
     .title {