Settings: shared css: add .settings-box.single-column

chrome/browser/resources/settings/settings_shared_css.html

Index: chrome/browser/resources/settings/settings_shared_css.html
diff --git a/chrome/browser/resources/settings/settings_shared_css.html b/chrome/browser/resources/settings/settings_shared_css.html
index cf4a05f7318708337d13bf09ba2b4aac6a7e6375..fad1b6360ac710c867266dcda8c97f85859d220c 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -280,6 +280,16 @@
         min-height: 56px;
       }
 
+      /*
+       * A settings box with a single start aligned column, frequently but not
+       * necessarily used in combination with two-line.
+       */
+      .settings-box.single-column {
+        align-items: flex-start;
+        flex-direction: column;
+        justify-content: center;
+      }
+
       /* The lower line of text in a .settings-box.two-line. */
       .settings-box .secondary {
         @apply(--settings-secondary);