diff --git a/json_to_md.py b/json_to_md.py
index 8d646fe..0795d53 100644
--- a/json_to_md.py
+++ b/json_to_md.py
@@ -70,8 +70,8 @@ def make_test_block(test, status, emoji, level, runtime_params):
     summary = f"{emoji} Test {test['global_number']}"
     if params:
         #param_display = ", ".join(f"{k}={sanitize_param_value(v)}" for k, v in params.items())
-        param_display = ", ".join(
-            f"{html.escape(str(k))}={html.escape(sanitize_param_value(v))}"
+        param_display = "\n".join(
+            f"{html.escape(str(k))} = {html.escape(sanitize_param_value(v))}"
             for k, v in params.items()
         )
         summary += (
@@ -83,9 +83,11 @@ def make_test_block(test, status, emoji, level, runtime_params):
             "word-break: break-word; "
             "background: none; "
             "border: none; "
-            "padding: 0; "
-            "margin: 0;'>"
-            f"params: {param_display}"
+            "padding: 2px 4px; "   # petit padding clean
+            "margin: 2px 0; "      # pas de gros carré
+            "display: inline-block;"  # le bloc s'adapte au contenu
+            "'>"
+            f"{param_display}"
             "</pre>"
         )