diff --git a/wagtail/admin/static_src/wagtailadmin/scss/layouts/workflow-progress.scss b/wagtail/admin/static_src/wagtailadmin/scss/layouts/workflow-progress.scss
index f707633aa8..2eb7d7bfa6 100644
--- a/wagtail/admin/static_src/wagtailadmin/scss/layouts/workflow-progress.scss
+++ b/wagtail/admin/static_src/wagtailadmin/scss/layouts/workflow-progress.scss
@@ -10,7 +10,7 @@
 
     &__button {
         background: none;
-        border: none;
+        border-style: none;
         padding-bottom: 5px;
         font-weight: bold;
 
@@ -34,7 +34,8 @@
     border-bottom: 1px solid rgb(229, 229, 229);
     font-size: 0.8em;
 
-    td, th {
+    td,
+    th {
         padding: 20px;
     }
 
@@ -48,7 +49,7 @@
         color: #555;
     }
 
-    &--tasks  {
+    &--tasks {
         background-color: rgb(250, 250, 250);
 
         .workflow-progress-table__left-column {