diff --git a/web/index.html b/web/index.html
index e7621e4..a5e92fe 100644
--- a/web/index.html
+++ b/web/index.html
@@ -46,7 +46,7 @@ <h1 class="dib pa3 ma0 lh-tight">
                   Run Test
                 </button>
             </div>
-            <div id="output" style="white-space:pre;" class="lh-copy fw6"></div>
+            <div id="output" style="white-space:pre; overflow-x: scroll;" class="lh-copy fw6"></div>
         </form>
     </section>
     <section class="mw8 center lh-copy dark-gray pv4 ph2 ph4-ns">