Remove space-padding from <pre> blocks

1 files changed, 9 insertions, 9 deletions

diff --git a/prolog/problems/denotational_semantics/algol_if_3/en.py b/prolog/problems/denotational_semantics/algol_if_3/en.py
index fae6c45..66855e5 100644
--- a/prolog/problems/denotational_semantics/algol_if_3/en.py
+++ b/prolog/problems/denotational_semantics/algol_if_3/en.py
@@ -6,15 +6,15 @@ slug = 'interpreter for mini-algol with if-statement'
 description = '''\
 <p>Extend the given DCG for mini-algol to support the if-statement. You can assume that both branches are present in every if-statement. Example:</p>
 <pre>
-  % if a < b then
-  %   print(a)
-  % else
-  %   print(b)
-  % end
-  ?- _Program = [begin,if,a,<,b,then,print(a),else,print(b),end,end],
-      algol_if(_F, _Program, []),
-      apply([a=3,b=5], Output, _F).
-    Output = [a=3,b=5,printout=[3]].
+% if a < b then
+%   print(a)
+% else
+%   print(b)
+% end
+?- _Program = [begin,if,a,<,b,then,print(a),else,print(b),end,end],
+    algol_if(_F, _Program, []),
+    apply([a=3,b=5], Output, _F).
+  Output = [a=3,b=5,printout=[3]].
 </pre>
 '''