Add better padding around frontpage example

website/themes/uppy/source/css/index.styl

@@ -104,13 +104,9 @@ html, body
     margin 0 auto 3em
     h2
         margin-bottom 1.5em
-    pre
-        padding 2px
-        margin 2px
-    code
-        padding 0px
-        margin 0px
     code, pre
+        padding 0
+        margin 0
         background-color transparent
         white-space pre
         font-family: 'Roboto Mono', Monaco, courier, monospace;
@@ -129,10 +125,11 @@ html, body
         font-weight 600
         color $light
     .block
+        padding 7px
         text-align left
         display inline-block
         width 43%
-        height 13em
+        height 12em
         vertical-align top
         background-color #f9f9f9
         border-radius 2px