diff --git a/src/vtp/cli/_arguments.py b/src/vtp/cli/_arguments.py
index 9038dd7..0775d43 100644
--- a/src/vtp/cli/_arguments.py
+++ b/src/vtp/cli/_arguments.py
@@ -137,5 +137,8 @@ def add_output_style(parser):
             "--output_style",
             type=str,
             default="text",
-            help="'text' is normal text; 'html' will decorate output with html markers (def='text')",
+            help=(
+                "'text' is normal text; 'html' will decorate output with html "
+                "markers (def='text')"
+            ),
         )
diff --git a/src/vtp/ops/operation.py b/src/vtp/ops/operation.py
index 44377e4..dee0463 100644
--- a/src/vtp/ops/operation.py
+++ b/src/vtp/ops/operation.py
@@ -136,7 +136,7 @@ def imprimir_formatting(
                     case "horizontal_shortline":
                         a_line = '<hr width="50%">'
                     case "empty_line":
-                        a_line = "<br>"
+                        a_line = ""
                     case "begin_good_box":
                         a_line = "*" * 12
                     case "end_good_box":