diff options
Diffstat (limited to 'src/css.js')
| -rw-r--r-- | src/css.js | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/css.js b/src/css.js index 29dca0e42..a69ad1730 100644 --- a/src/css.js +++ b/src/css.js @@ -46,7 +46,8 @@ function setPositiveNumber( _elem, value, subtract ) { function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) { var i = dimension === "width" ? 1 : 0, extra = 0, - delta = 0; + delta = 0, + marginDelta = 0; // Adjustment may not be necessary if ( box === ( isBorderBox ? "border" : "content" ) ) { @@ -56,8 +57,10 @@ function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computed for ( ; i < 4; i += 2 ) { // Both box models exclude margin + // Count margin delta separately to only add it after scroll gutter adjustment. + // This is needed to make negative margins work with `outerHeight( true )` (gh-3982). if ( box === "margin" ) { - delta += jQuery.css( elem, box + cssExpand[ i ], true, styles ); + marginDelta += jQuery.css( elem, box + cssExpand[ i ], true, styles ); } // If we get here with a content-box, we're seeking "padding" or "border" or "margin" @@ -108,7 +111,7 @@ function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computed ) ) || 0; } - return delta; + return delta + marginDelta; } function getWidthOrHeight( elem, dimension, extra ) { |