libreoffice-online/browser/welcome/welcome.css

:root {
	--welcome-text: #222;
	--welcome-anchor: #444;
	--welcome-gradient: 186, 186, 186;
	--welcome-highlight: #efefef;
	--welcome-btn-border: #444;
	--welcome-glow-img: #e5e5e5;
}
[data-theme='dark'] {
	--welcome-text: #e8e8e8;
	--welcome-anchor: #121212;
	--welcome-gradient: 69, 69, 69;
	--welcome-highlight: black;
	--welcome-btn-border: #e8e8e8;
	--welcome-glow-img: black;
}
* {
	box-sizing: border-box;
	scrollbar-color: transparent transparent;
	scrollbar-width: 0;
	-ms-overflow-style: none;
}

/* Hiding scroll bar */
*::-webkit-scrollbar {
	width: 0;
}

*::-webkit-scrollbar-track {
	background: transparent;
}

*::-webkit-scrollbar-thumb {
	background: transparent;
	border: none;
}

.slider,
.slides > div {
	width: 96%;
}

.slider {
	text-align: center;
	overflow: hidden;
	height: auto;
	margin: auto;
}

.slides {
	display: flex;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	-webkit-overflow-scrolling: touch;
}

.slides::-webkit-scrollbar {
	display: none;
}

.slides::-webkit-scrollbar-thumb {
	background: black;
	border-radius: 10px;
}

.slides::-webkit-scrollbar-track {
	background: transparent;
}

.slides > div {
	scroll-snap-align: start;
	flex-shrink: 0;
	margin-right: 50px;
	border-radius: 10px;
	transform-origin: center center;
	transform: scale(1);
	transition: transform 0.5s;
	position: relative;
}

.slider > a {
	display: inline-flex;
	width: 14px;
	height: 14px;
	background: linear-gradient(to top, rgba(var(--welcome-gradient), 0.7), rgba(var(--welcome-gradient), 1));
	text-decoration: none;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	margin: 0 0 0.5rem 0.5rem;
	position: relative;
	color: transparent;
	-webkit-user-select: none; /* Safari */
	-moz-user-select: none; /* Firefox */
	-ms-user-select: none; /* IE10+/Edge */
	user-select: none; /* Standard */
}

.slides h2 > a {
	text-decoration: none;
	color: var(--welcome-text);
	background: var(--welcome-highlight);
	padding: 0 4px;
	border-radius: 8px;
}

.slides h2 > a:hover {
	color: #000;
	background: white;
	box-shadow: 0 0 4px 1px #00000024;
}

.slider > a:active,
.slider > a.active {
	background: var(--welcome-anchor);
}

.slider > a:focus {
	background: var(--welcome-anchor);
}

/* Don't need button navigation */
@supports (scroll-snap-type) {
	.slider > a {
		display: none;
	}
}

html,
body {
	height: 100%;
	overflow: hidden;
	margin: 0;

	/* Same font as used in dialogs */
	font-family: 'Helvetica Neue', sans-serif;
}

.slides h1 {
	font-size: 22px;
	font-weight: normal;
	margin-bottom: 4px;
	color: var(--welcome-text);
}

.slides h2 {
	font-size: 16px;
	font-weight: normal;
	margin-top: 0;
	color: var(--welcome-text);
}

.slides p {
	font-size: 14px;
	font-weight: normal;
	color: var(--welcome-text);
}

.slides a {
	text-decoration: none;
	color: #0b87e7;
}

.slides fig {
	height: 232px;
	display: block;
	margin: 16px auto 12px auto;
}

html:not([data-theme='dark']) #slide-1 fig {
	background: linear-gradient(to top, #e6e6e6c4, #e6e6e64f 3%, white 33%);
}
#slide-1 fig {
	border-radius: 0 0 50% 50%;
	display: flex;
	justify-content: center;
	align-items: center;
}

#slide-1 #fig-slide1-l {
	background: url('slide1-left.png') no-repeat center;
	width: 68px;
	height: 68px;
	box-shadow: 0 0 8px 1px #00000040;
	border-radius: 100%;
}

#slide-1 #fig-slide1-c {
	background: url('slide1-center.png') no-repeat center;
	width: 96px;
	height: 96px;
	box-shadow: 0 0 12px 1px #00000040;
	border-radius: 100%;
	margin: 42px 32px 0;
}

#slide-1 #fig-slide1-r {
	background: url('slide1-right.png') no-repeat center;
	width: 68px;
	height: 68px;
	box-shadow: 0 0 8px 1px #0000005e;
	border-radius: 100%;
}

#slide-2 fig {
	background: url('slide2.png') no-repeat center;
}

#slide-3 fig {
	background: url('slide3.png') no-repeat center;
	box-shadow: 0 0 8px 1px var(--welcome-glow-img);
	width: 342px;
	border-radius: 8px;
}

#view-supported-versions {
	text-align: center;
	display: block;
}

#user-welcome--buttons {
	display: flex;
	flex-direction: row;
	justify-content: flex-end;
	position: relative;
}

.arrow {
	border: solid var(--welcome-btn-border);
	border-width: 0 3px 3px 0;
	display: inline-block;
	padding: 3px;
	margin-left: -3px;
}

.arrow.right {
	transform: rotate(-45deg);
}

.arrow.left {
	transform: rotate(135deg);
	-webkit-transform: rotate(135deg);
}

.arrow.left.close {
	margin-left: 1px;
	display: none;
}

#slide-3-button {
	width: auto;
	border-radius: 18px;
	height: 32px;
	margin: 1.5px;
	border-color: #0084d145;
	font-weight: bold;
	color: #0084d1;
	border-width: 2px;
}

#slide-3-button:hover {
	background-color: #0084d1;
	color: white;
}

button {
	border: 1px solid var(--welcome-btn-border);
	background-color: transparent;
	border-radius: 50%;
	width: 48px;
	height: 48px;
	appearance: none;
}

button:active {
	box-shadow: inset 0 0 3px 2px #00000024;
}

button:hover {
	background-color: var(--welcome-highlight);
}

button:hover .arrow.right.close {
	margin-left: 0;
}

button:hover .arrow.left.close {
	display: inline-block;
}

#welcome-close {
	position: absolute;
	top: 0;
	right: 0;
	cursor: pointer;
}

#welcome-close::before {
	border: 1px solid transparent;
	border-radius: 50%;
	width: 48px;
	height: 48px;
	line-height: 48px;
	font-size: 36px;
	position: absolute;
	content: '\00D7';
	font-weight: normal;
	text-align: center;
	top: 3px;
	right: 3px;
	color: #bbb;
	background: transparent;
}

#welcome-close:hover::before,
#welcome-close:active::before {
	border-radius: 100px;
	color: white;
	background-color: #bbb;
}

@media  only screen
	and (max-width: 500px)
	and (orientation: portrait) {
	.slider,
	.slides > div {
		width: 100%;
	}

	button {
		width: 62px;
		height: 62px;
		border-top-right-radius: 0;
		border-bottom-right-radius: 0;
	}

	.slides p {
		margin-left: 14px;
		margin-right: 14px;
	}

	.arrow {
		padding: 4px;
	}

	#slide-3-button {
		background-color: #0084d1;
		color: white;
		width: 100%;
		height: 44px;
		border-radius: 3px;
		margin: 8px;
		font-size: 1em;
	}

	a[id^='slide-'] {
		display: none;
	}

	#view-supported-versions {
		height: 44px;
		margin-top: 24px;
	}
}

@media  only screen
	and (max-height: 500px)
	and (orientation: landscape) {
	.slider,
	.slides > div {
		width: 100%;
	}

	button {
		width: 62px;
		height: 62px;
		border-top-right-radius: 0;
		border-bottom-right-radius: 0;
	}

	.arrow {
		padding: 4px;
	}

	html,
	body {
		overflow-y: scroll;
	}

	.slides p {
		margin-left: 14px;
		margin-right: 14px;
	}

	.slides fig {
		height: 116px;
	}

	#slide-3-button {
		background-color: #0084d1;
		color: white;
		width: 100%;
		height: 44px;
		border-radius: 3px;
		margin: 8px;
		font-size: 1em;
	}

	a[id^='slide-'] {
		display: none;
	}

	#view-supported-versions {
		height: 44px;
		margin-top: 24px;
	}
}