skins/Vector/resources/skins.vector.styles/layouts/screen.less
/**
 * Vector modern layout styles for screen
 *
 * Layout rules divide the page into sections and how VectorComponents should be arranged in the skin.
 * The rules here should only define the layout, not color or typography.
 */

html {
	scroll-padding-top: @scroll-padding-top;
}

body {
	background-color: @background-color-secondary--modern;
	color: @color-base;
}

.mw-body,
.parsoid-body {
	direction: ltr;
}

.mw-body .firstHeading {
	word-wrap: break-word;
	margin-bottom: 0;
}

.mw-header {
	// allow z-index to apply so search results overlay article
	position: relative;
	z-index: @z-index-header;
}

#mw-content-text {
	margin-top: 16px;
}

/* Content */
.mw-indicators {
	z-index: @z-index-indicators;
}

.vector-page-titlebar {
	.mixin-clearfix();
	box-shadow: none;
	// Faux bottom border that stretches to the edges
	// of the *content*, not the full width of the box.
	&::after {
		content: '';
		display: block;
		position: absolute;
		bottom: 0;
		left: 0;
		right: 0;
		height: 1px;
		background-color: @border-color-base;
	}

	&-blank::after {
		content: none;
	}
}

.vector-body-before-content {
	// Contain the floating .mw-indicators, but don't use clearfix because of browser inconsistencies
	// when combining 'clear' and 'margin-top' (T325391)
	overflow: hidden;

	// Margin is only applied to indicators inside `.vector-body-before-content` since they can
	// also appear next to the page title, where margin is not needed.
	.mw-indicators {
		margin-top: @margin-top-pre-content;
	}
}

// Language button at bottom of content.
.mw-body .mw-portlet-lang {
	float: right;
}

.vector-body {
	position: relative;
	z-index: @z-index-base;
}

#siteSub {
	margin-top: @margin-top-pre-content; // T311564
}

// Styles only applied to non-empty #contentSub to avoid extra margins when both #contentSub and #contentSub2
// are rendered.
#contentSub:not( :empty ),
#contentSub2 {
	font-size: @font-size-small;
	color: @color-subtle;
	width: auto;
	// Visually separate #contentSub and #contentSub2 (T315639)
	margin: @margin-top-pre-content 0 0;
}

// Container logic.
.mw-page-container {
	.mixin-vector-page-container-sizing();
	// Setting position and z-index is important as it allows overlays appended to the body tag
	// to position themselves over the Vector interface. This forms another stacking context for
	// elements placed inside this element
	position: relative;
	z-index: @z-index-base;
	margin: 0 auto;
	// Use non-zero padding to disable margin collapse.
	// Be careful not to use overflow-y: scroll here (see T270146 and T271868)
	padding-top: 0.05px;
	padding-left: @padding-horizontal-page-container;
	padding-right: @padding-horizontal-page-container;
	background-color: @background-color-page-container;
}

@media ( min-width: @min-width-breakpoint-desktop ) {
	.mw-page-container,
	.vector-header-container .mw-header,
	.vector-header-container .vector-sticky-header {
		padding-left: @padding-horizontal-page-container-desktop;
		padding-right: @padding-horizontal-page-container-desktop;
	}
}

@media ( min-width: @min-width-breakpoint-desktop-wide ) {
	.mw-page-container,
	.vector-header-container .mw-header,
	.vector-header-container .vector-sticky-header {
		padding-left: @padding-horizontal-page-container-desktop-wide;
		padding-right: @padding-horizontal-page-container-desktop-wide;
	}
}

.vector-header-container {
	width: 100%;
	display: flex;
	justify-content: center;
}

.vector-header-container .mw-header,
.vector-header-container .vector-sticky-header {
	width: 100%;
	// A min-height is set to account for projects where no icon is set.
	min-height: @height-header;
	background-color: @background-color-page-container;
	.mixin-vector-page-container-sizing();
}

.vector-feature-limited-width-clientpref-0 .mw-page-container,
.vector-feature-limited-width-clientpref-0 .vector-sticky-header,
.vector-feature-limited-width-clientpref-0 .mw-header {
	max-width: none;
}

.skin--responsive .mw-page-container {
	min-width: auto;
}

// Address issues with INP: T358380
// This can be removed if Vector 2022 ever becomes responsive.
// More information:
// https://developer.chrome.com/blog/300ms-tap-delay-gone-away?hl=en
html {
	touch-action: manipulation;
}
