Remove space-padding from <pre> blocks

1 files changed, 4 insertions, 4 deletions

diff --git a/prolog/problems/trees/membert_2/en.py b/prolog/problems/trees/membert_2/en.py
index 738d625..ef48931 100644
--- a/prolog/problems/trees/membert_2/en.py
+++ b/prolog/problems/trees/membert_2/en.py
@@ -6,10 +6,10 @@ slug = 'find elements in a tree'
 description = '''\
 <p><code>memberT(X, T)</code>: <code>X</code> is an element of the tree <code>T</code>. A tree node is represented with the structure <code>t(E, T1, T2...)</code>, where <code>E</code> is the node's value, followed by any number of subtrees. An empty tree is denoted by <code>nil</code>.</p>
 <pre>
-  ?- memberT(X, t(3, t(1), t(2))).
-    X = 3 ;
-    X = 1 ;
-    X = 2.
+?- memberT(X, t(3, t(1), t(2))).
+  X = 3 ;
+  X = 1 ;
+  X = 2.
 </pre>'''
 
 hint = {}