diff --git a/Sandbox/FilterlistsWidthProofOfConcept.txt b/Sandbox/FilterlistsWidthProofOfConcept.txt
new file mode 100644
index 000000000..7eff330f0
--- /dev/null
+++ b/Sandbox/FilterlistsWidthProofOfConcept.txt
@@ -0,0 +1,4 @@
+! Title: Filterlists Width Proof of Concept
+filterlists.com##.rt-thead.-header:style(min-width:400px)
+filterlists.com##.rt-thead.-filter:style(min-width:400px)
+filterlists.com##.rt-tbody:style(min-width:400px)