Andreas Kling 492629e3d8 LibWeb: Don't resolve percentage heights against min-height ...

Per CSS 2.1 Section 10.5, percentage heights should only resolve when
the containing block's height is "specified explicitly". This means a
containing block with `height: auto` and `min-height: 50px` does NOT
provide a definite height for percentage resolution - the child's
`height: 100%` should be treated as `auto`.

Previously, we checked `available_space.height.is_indefinite()` to
determine if percentage heights should become auto. However, this
conflated "available layout space" with "containing block height for
percentage resolution" - these are distinct concepts.

Now we check the containing block's `has_definite_height()` flag, which
correctly reflects whether the containing block has an explicit height
property. This handles:

- Anonymous wrapper blocks (skip them to find real containing block)
- Quirks mode (has special percentage height handling)
- Absolutely positioned elements (excluded, different rules apply)

Also update `calculate_inner_height()` to use the containing block's
actual used height when resolving percentages with indefinite available
space, which fixes inline-block and similar cases.

2026-01-25 20:29:44 +01:00

..

abspos-block.html

LibWeb: Position absolute block-level boxes below previous siblings

2025-09-29 18:37:53 +02:00

abspos-br.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

abspos-grid-with-definite-width.html

LibWeb: Use inner available space to calculate auto height of abspos

2023-11-15 11:26:14 +01:00

abspos-inline.html

LibWeb: Correctly position absolute inline boxes in last line

2025-08-28 13:45:37 +02:00

abspos-only-with-inset-left.html

LibWeb: Do not compensate padding for abspos boxes with static position

2023-11-15 23:44:05 +01:00

abspos-with-auto-margins-in-inline-axis.html

LibWeb: Resolve auto margins on abspos elements in more cases

2023-06-13 17:47:50 +02:00

abspos-with-bottom-right-insets-relative-to-box-with-paddings.html

LibWeb: Do not compensate padding for abspos boxes with static position

2023-11-15 23:44:05 +01:00

abspos-with-insets-and-auto-margins.html

LibWeb: Subtract left inset from size_available_for_margins for abspos

2024-07-19 13:29:20 +01:00

abspos-with-percentage-height-resolved-against-padding-box-of-containing-block.html

LibWeb: Use correct reference for abspos elements with % height sizes

2023-06-17 20:35:19 +02:00

abspos-with-percentage-padding.html

LibWeb: Fix "box-sizing: border-box" resolution for abspos items

2024-09-17 07:56:18 +02:00

abspos-without-insets-relative-top-box-with-padding-top.html

LibWeb: Do not compensate padding for abspos boxes with static position

2023-11-15 23:44:05 +01:00

abspos-without-insets.html

LibWeb: Do not compensate padding for abspos boxes with static position

2023-11-15 23:44:05 +01:00

aspect-ratio-but-width-and-height-are-auto.html

LibWeb: Size box as normal if it has aspect ratio but auto sizes

2025-03-27 23:13:57 +00:00

atomic-inline-with-aspect-ratio-2.html

LibWeb: Don't make flex layout responsible for flex container cross size

2024-03-27 16:43:04 +01:00

atomic-inline-with-percentage-vertical-align.html

…

atomic-inline-with-white-space-nowrap.html

LibWeb: Don't break for atomic inline elements in white-space: nowrap

2023-09-16 15:21:16 +02:00

automatic-size-of-block-container-with-inline-children-and-nonempty-floating-child.html

LibWeb: Take floats into account when measuring automatic width of IFC

2023-05-03 19:49:43 +02:00

bfc-consider-all-currently-stacked-floats.html

…

bfc-float-left-break-vertically-2.html

…

bfc-float-left-break-vertically.html

…

bfc-root-auto-height-expands-for-descendants-with-margin-top.html

LibWeb: Account for collapsed top margins in BFC root height calculation

2025-02-22 18:41:42 +01:00

block-inside-inline.html

LibWeb: Ensure anonymous wrappers inherit inline-block display

2025-05-23 11:16:06 +02:00

block-level-floating-box-with-clearance.html

LibWeb: Allow block level boxes to be floated and have clearance

2023-09-12 12:11:53 +02:00

block-with-fit-content-width-constraints.html

LibWeb: Accept fit-content as a value for min-width and max-width

2023-05-27 05:47:54 +02:00

block-with-fit-content-width.html

LibWeb: Support fit-content width for block-level boxes

2023-05-27 05:47:54 +02:00

block-with-hidden-overflow-after-float-and-margin-left.html

LibWeb: Overlap float space and left margins for all shared ancestors

2025-05-09 14:13:02 +02:00

block-with-hidden-overflow-after-float.html

LibWeb: Handle overlapping floating box and left margin

2023-07-28 12:44:09 +02:00

block-with-hidden-overflow-after-sibling-float.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

block-with-max-content-width.html

LibWeb: Support max-content for width, min-width and max-width

2023-05-29 21:29:25 +02:00

block-with-min-content-width.html

LibWeb: Support min-content for width, min-width and max-width

2023-05-29 21:29:25 +02:00

block-with-negative-margin-and-no-intruding-floats.html

LibWeb: Account for negative margins when calculating float intrusion

2023-06-04 18:14:12 +02:00

box-with-clearance-and-margin-top.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

box-with-percentage-height-wrapped-in-anonymous.html

LibWeb: Use parent's available space for anonymous blocks in BFC

2025-03-15 13:31:07 +01:00

button-baseline-align.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-empty.html

Tests: Rename button test to something sensible

2025-08-19 11:12:23 +02:00

button-image-only.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-should-have-vertically-aligned-content.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-width.html

LibWeb: Use fit-content width if button's computed width is "auto"

2023-09-12 17:26:30 +02:00

button-with-abspos-pseudo-element.html

LibWeb: Use flex layout for button content alignment

2023-09-03 12:33:10 +02:00

button-with-after-pseudo.html

LibWeb: Add boxes for before/after pseudos post button layout tweak

2023-09-11 15:19:56 +02:00

button-with-before-pseudo.html

LibWeb: Add boxes for before/after pseudos post button layout tweak

2023-09-11 15:19:56 +02:00

button-with-block-content-baseline-align.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-with-min-height.html

LibWeb: Make button flex wrapper inherit min-height property

2024-01-28 14:48:33 +01:00

button-with-multiple-words-text-node-label.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-with-text-node-label-and-font-size.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

button-with-text-node-label.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

clear-both-from-inline-formatting-context.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

clear-both-without-introducing-clearance.html

LibWeb: Reset margin collapsing state only if box indeed add clearance

2023-05-26 18:11:35 +02:00

clearfix.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

columns-33-percent-width.html

LibWeb: Remove rounding division for CSSPixels

2024-01-06 21:40:27 +01:00

flex-container-should-avoid-overlapping-floats.html

LibWeb: Boxes that establish FFC or GFC should avoid overlapping floats

2023-09-22 16:48:28 +02:00

float-1.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-2.html

…

float-3.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-4.html

LibWeb: Fix alternating-sides float positioning

2023-07-02 18:43:20 +02:00

float-clear-by-line-break-at-end-of-block.html

LibWeb: Resolve block height correctly after line break with clear: ..

2025-04-01 16:02:53 +02:00

float-clear-by-line-break-followed-by-block.html

LibWeb: Resolve block height correctly after line break with clear: ..

2025-04-01 16:02:53 +02:00

float-clear-by-line-break-followed-by-inline.html

LibWeb: Apply remaining vertical float clearance to next block level box

2025-03-27 17:21:56 +00:00

float-clear-right-should-not-affect-inline-left.html

LibWeb: Remove application of vertical float clearance to BFC Y offset

2025-04-23 13:24:58 +02:00

float-clear-simultaneously.html

LibWeb: Do not clear float sides for floating boxes with clear: ..

2025-03-27 00:56:56 +00:00

float-fits-exactly.html

LibWeb: Correct the calculation for right float intrusion

2025-05-27 17:31:47 +02:00

float-following-trailing-whitespace.html

LibWeb: Exclude trailing whitespace from line width when placing floats

2025-03-26 19:35:38 +00:00

float-initial-available-space-vs-height.html

LibWeb: Fix and improve float positioning behavior

2025-03-27 10:56:13 +00:00

float-inside-margin-auto-container.html

LibWeb: Only apply box offset if the box is not already the ancestor

2025-04-04 15:35:26 +02:00

float-intrusions-relative-coordinates.html

LibWeb: Use relative coordinates for available_space_for_line()

2025-04-01 15:26:12 +02:00

float-left-and-right-with-justified-text-in-between.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-left-and-right-with-text-in-between.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-logical.html

LibWeb: Handle inline-start and inline-end as float values

2024-07-10 17:41:18 +02:00

float-max-content-containing-block-flex-display.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-max-content-containing-block.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-nested-under-eachother.html

LibWeb: Correct the calculation for right float intrusion

2025-05-27 17:31:47 +02:00

float-should-avoid-inline-block.html

LibWeb: Use actual line height to calculate float y in IFC

2023-09-09 17:05:22 +02:00

float-stress-1.html

…

float-stress-2.html

…

float-stress-3.html

…

float-under-if-would-fit.html

LibWeb: Ensure floats are correctly placed under the preceding float

2025-05-23 10:58:15 +02:00

float-vertical-clearance-for-text-after-break.html

LibWeb: Only set line builder's block offset if clearance increases it

2025-03-31 08:11:10 +01:00

float-vertical-clearance-ignores-opposite-side.html

LibWeb: Fix and improve float positioning behavior

2025-03-27 10:56:13 +00:00

float-vertical-offset-by-preceding-float.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

float-with-inline-contents-hoisted.html

LibWeb: Don't mess up the order of nodes when wrapping inline contents

2025-04-24 19:12:50 +02:00

float-with-negative-margin-containing-block.html

LibWeb: Allow negative margins to influence inline offset after float

2025-07-28 12:11:56 +02:00

float-with-negative-margins.html

LibWeb: Ignore negative margins for margin box rect

2025-04-11 02:34:28 +01:00

floating-box-with-box-sizing-border-box.html

Tests/LibWeb: Add layout test for float box with box-sizing=border-box

2024-09-18 15:49:40 +02:00

floats-and-negative-margins.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

floats-with-negative-percentage-margins.html

LibWeb: Ensure preceding offset is non-negative in float_box()

2023-09-12 12:11:53 +02:00

forced-break-stops-non-whitespace-sequence.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

grid-container-should-avoid-overlapping-floats.html

LibWeb: Boxes that establish FFC or GFC should avoid overlapping floats

2023-09-22 16:48:28 +02:00

html-element-height-quirks-mode-off.html

LibWeb: Bring html element height calculation closer to the spec

2023-08-31 21:43:58 +02:00

html-element-height-quirks-mode-on.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

ifc-float-left-and-sibling-with-margin-left.html

…

img-as-block-with-box-sizing-border-box.html

LibWeb: Honor box-sizing for block-level replaced element widths

2025-07-14 11:16:13 +02:00

inline-block-baseline-1.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

inline-block-baseline-2.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

inline-block-contained-by-abspos-element.html

LibWeb: Fix min-content width calculation in dimension_box_on_line()

2023-10-16 21:44:48 +02:00

inline-block-contained-by-inline.html

LibWeb: Count the width of inline-blocks in InlineNodes only once

2025-10-27 21:45:33 -07:00

inline-block-leading-and-trailing-metrics.html

LibWeb: Prevent time-traveling leading inline metrics

2025-06-20 19:59:32 +02:00

inline-block-percentage-max-width.html

LibWeb: Ignore % max-width if box is sized under max-content constraint

2023-08-18 05:08:52 +02:00

inline-block-vertical-align-middle.html

LibWeb: Implement vertical-align: middle correctly for atomic inlines

2024-08-26 15:49:07 +02:00

inline-block-with-max-width-fit-content.html

LibWeb: Fully resolve max-width values on inline-block elements

2023-07-15 12:30:07 +02:00

inline-block-with-negative-margin-left.html

LibWeb: Honor negative margins on atomic inlines

2023-12-10 11:09:22 +01:00

inline-block-with-negative-margin-right.html

LibWeb: Honor negative margins on atomic inlines

2023-12-10 11:09:22 +01:00

inline-block-with-percentage-height-and-auto-height-of-containing-block.html

LibWeb: Fix inline-block percentage height calculation

2023-07-16 15:00:30 +02:00

inline-box-positioned-with-top-left.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

inline-box-with-vertical-margins-vertical-align-top.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

inline-box-with-vertical-margins.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

inline-float-clear.html

LibWeb: Change inline float clearance to not reset margin collapsing

2024-09-21 01:55:43 +02:00

inline-node-not-inserted-into-generated-box.html

LibWeb: Stop inserting inline nodes into a generated wrapper box

2023-10-11 07:05:23 +02:00

inline-text-margin.html

LibWeb: Peek after extracting next chunk in InlineLevelIterator

2025-10-20 12:37:25 +01:00

intrinsic-sizing-stress-test.html

LibWeb: Avoid intrinsic sizing of boxes that don't create new FC

2026-01-14 13:52:22 +01:00

intrinsic-sizing-with-min-width-specified.html

LibWeb: Fix intrinsic sizing when min or max width is specified

2023-05-02 18:50:26 +02:00

join-out-of-flow-box-with-previous-sibling-if-wrapped-in-anonymous-box.html

…

leading-margin-on-inline-content-that-starts-with-collapsible-whitespace.html

LibWeb: Don't lose track of inline margins when collapsing whitespace

2024-01-20 23:29:51 +01:00

list-markers-intruded-by-float.html

LibWeb: Account for float intrusions in list marker x offset

2023-08-26 19:07:56 +02:00

margin-collapse-1.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

margin-collapse-2.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

margin-collapse-3.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

margin-collapse-4.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

margin-collapse-5.html

LibWeb: Prevent margin double-counting with "collapse through" boxes

2023-04-27 07:52:12 +02:00

margin-collapse-6.html

LibWeb: Make sure collapsed margins are not ignored if box creates FC

2023-05-22 12:51:24 +02:00

margin-collapse-7.html

LibWeb: Fix incorrect margin collapsing behavior [BFC]

2025-09-08 14:09:06 +02:00

margin-collapse-8.html

LibWeb: Fix incorrect margin collapsing behavior [BFC]

2025-09-08 14:09:06 +02:00

margin-must-not-collapse-across-nested-bfc.html

LibWeb: Make sure that margins don't collapse across a nested BFC

2023-05-19 15:09:09 +02:00

margin-padding-block-inline-start.html

LibWeb: Add CSS logical property aliases for margin and padding sides

2023-06-06 21:02:04 +02:00

margin-padding-block-inline.html

LibWeb: Add naive support for {margin,padding}-{block,inline}

2023-06-07 11:20:42 +02:00

max-width-for-box-with-inline-children.html

LibWeb: Set max-width for inline child boxes after inside layout

2023-08-02 05:27:56 +02:00

max-width-must-not-expand-element.html

LibWeb: Prevent max-width expanding the width

2023-07-12 11:44:57 +02:00

max-width-on-block-level-box-that-creates-fc.html

LibWeb: Respect min/max-content available size in auto width calculation

2025-03-28 02:13:41 +00:00

max-width-on-child-block-with-width-auto-contributes-to-intrinsic-size-of-parent.html

…

max-width-percentage-100-border-box.html

LibWeb: Remove early resolve to auto while calculating border-box width

2023-05-05 10:01:28 +02:00

max-width-percentage-100.html

LibWeb: Remove setting length to 0px if it is not definite

2023-05-05 06:20:44 +02:00

max-width-percentage-containing-block.html

LibWeb: Resolve block max-width percentage against containing block

2023-10-29 19:35:02 +01:00

max-width-wrapped-in-max-content.html

LibWeb: Apply min/max-widths to block container during intrinsic layout

2023-12-26 16:24:51 +01:00

min-width-for-box-with-inline-children.html

LibWeb: Set min-width for inline child boxes after inside layout

2023-08-05 09:25:24 +02:00

narrow-bfc-width-to-avoid-overlap-with-floats.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

negative-margin-with-padding.html

LibWeb: Always set the Y offset of the current block in BFC

2025-05-16 20:33:27 +02:00

no-relocation-of-atomic-inline-fragments.html

LibWeb: Don't relocate fragments across atomic inline boundary

2025-08-24 21:00:08 +02:00

out-of-flows-not-inserted-into-generated-box.html

LibWeb: Don't insert out-of-flow elements into block pseudo elements

2024-07-06 10:02:29 +02:00

percentage-height-abspos-box-with-percentage-height-child.html

LibWeb: Mark height as definite before doing inner layout of abspos

2025-03-21 14:46:31 -05:00

percentage-height-box-nested-into-percentage-height-box.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

percentage-height-in-quirks-mode.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

percentage-height-with-min-height-parent.html

LibWeb: Don't resolve percentage heights against min-height

2026-01-25 20:29:44 +01:00

percentage-min-height-with-containing-block-padding.html

LibWeb: Use padding box of containing block to resolve % height size

2023-06-18 20:29:40 +02:00

percentage-min-height.html

LibWeb: Use padding box of containing block to resolve % height size

2023-06-18 20:29:40 +02:00

percentage-min-width-with-max-content-containing-block-width.html

LibWeb: Treat non-finite containing block width as zero for percentages

2023-07-01 09:06:49 +02:00

percentage-padding-on-inline-block-with-indefinite-containing-block-size.html

LibWeb: Resolve inline-block percentage padding against 0, not infinity

2023-07-06 14:25:40 +01:00

relpos-block.html

LibWeb: Resolve used insets for floating elements

2023-07-04 06:43:53 +02:00

relpos-float.html

LibWeb: Resolve used insets for floating elements

2023-07-04 06:43:53 +02:00

relpos-inline-element-js-offsets.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

relpos-inline-elements.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

single-br-inline-layout.html

Tests: Add doctypes to remaining test cases

2025-06-21 14:09:47 +02:00

small-percentage-margin.html

LibWeb: Add Length::resolved() overload for CSSPixels

2023-08-30 20:09:15 +02:00

treat-percentage-width-as-auto-in-non-replaced-min-content-sizing.html

LibWeb: Don't treat non-replaced sizes as 0 for min-content contrib

2025-07-23 19:52:59 +02:00

width-auto-margins-set-zero-if-containing-size-smaller.html

LibWeb: Zero out margins if width is not 'auto' in BFC's compute_width

2023-05-05 13:26:41 +02:00