Document thumbinner's block formatting context

Document the side effect of setting overflow:hidden on thumbinner.
It's primary utility here is to clear the background of the block from
any floating content, avoiding potential overlap.

The property sets a new block formatting context.

Change-Id: I91b759cdd386cb648b1b704b0e7df708f6c4fa92

diff --git a/resources/src/mediawiki.legacy/commonPrint.css b/resources/src/mediawiki.legacy/commonPrint.css
index c6ccb43..d387a2d 100644 (file)
--- a/resources/src/mediawiki.legacy/commonPrint.css
+++ b/resources/src/mediawiki.legacy/commonPrint.css
@@ -249,6 +249,8 @@ div.thumbinner {
        padding: 3px !important;
        font-size: 94%;
        text-align: center;
+       /* new block formatting context,
+        * to clear background from floating content  */
        overflow: hidden;
 }
 

diff --git a/resources/src/mediawiki.legacy/oldshared.css b/resources/src/mediawiki.legacy/oldshared.css
index 075fe86..f6c3cdb 100644 (file)
--- a/resources/src/mediawiki.legacy/oldshared.css
+++ b/resources/src/mediawiki.legacy/oldshared.css
@@ -90,6 +90,8 @@ div.thumbinner {
        background-color: #f9f9f9;
        font-size: 94%;
        text-align: center;
+       /* new block formatting context,
+        * to clear background from floating content  */
        overflow: hidden;
 }
 

diff --git a/resources/src/mediawiki.skinning/content.css b/resources/src/mediawiki.skinning/content.css
index a20dd86..85bf9f6 100644 (file)
--- a/resources/src/mediawiki.skinning/content.css
+++ b/resources/src/mediawiki.skinning/content.css
@@ -152,6 +152,8 @@ div.thumbinner {
        background-color: #f9f9f9;
        font-size: 94%;
        text-align: center;
+       /* new block formatting context,
+        * to clear background from floating content  */
        overflow: hidden;
 }