server/core/css/mobile.scss

@media only screen and (max-width: 768px) {

#body-login #header {
	padding-top: 10px;
}

#body-login .wrapper {
	display: flex;
	flex-direction: row;
	align-self: center;
	align-items: center;
}

/* do not show update notification on mobile */
#update-notification {
	display: none !important;
}

/* position share dropdown */
#dropdown {
	margin-right: 10% !important;
	width: 80% !important;
}

/* fix name autocomplete not showing on mobile */
.ui-autocomplete {
	z-index: 1000 !important;
}

/* fix error display on smaller screens */
.error-wide {
	width: 100%;
	margin-left: 0 !important;
	box-sizing: border-box;
}


/* APP SIDEBAR TOGGLE and SWIPE ----------------------------------------------*/

#app-navigation,
#app-content {
	position: absolute !important;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}

#app-navigation {
	width: 250px !important;
}

#app-content {
	width: 100% !important;
	left: 0 !important;
	background-color: $color-main-background;
	overflow-x: hidden !important;
	z-index: 1000;
}

/* allow horizontal scrollbar in settings
	otherwise user management is not usable on mobile */
#body-settings #app-content {
	overflow-x: auto !important;
}

#app-navigation-toggle {
	position: fixed;
	display: inline-block !important;
	top: 45px;
	left: 0;
	width: 44px;
	height: 44px;
	z-index: 149;
	background-color: rgba($color-main-background, .7);
	cursor: pointer;
	opacity: .6;
}
#app-navigation-toggle:hover,
#app-navigation-toggle:focus {
	opacity: 1;
}

/* position controls for apps with app-navigation */
#app-navigation+#app-content #controls {
	padding-left: 44px;
}

/* .viewer-mode is when text editor, PDF viewer, etc is open */
#body-user .app-files.viewer-mode #controls {
	padding-left: 0 !important;
}
.app-files.viewer-mode #app-navigation-toggle {
	display: none !important;
}

table.multiselect thead {
	left: 0 !important;
}


/* prevent overflow in user management controls bar */
#usersearchform {
	display: none;
}
#body-settings #controls {
	min-width: 768px !important;
}


/* do not show dates in filepicker */
#oc-dialog-filepicker-content .filelist .filesize,
#oc-dialog-filepicker-content .filelist .date {
	display: none;
}
#oc-dialog-filepicker-content .filelist .filename {
	max-width: 80%;
}


/* fix controls bar jumping when navigation is slid out */
.snapjs-left #app-navigation-toggle,
.snapjs-left #controls {
	top: 0;
}
.snapjs-left table.multiselect thead {
	top: 44px;
}



/* end of media query */
}

@media only screen and (max-width: 480px) {
	#header .header-right .menu {
		max-width: calc(100vw - 26px);
		position: fixed;
		right: 13px;
		top: 45px;
		&::after {
			display: none !important;
		}
	}
	/* Arrow directly child of menutoggle */
	#header .header-right > div {
		&.openedMenu{
			&::after {
				display: block;
			}
		}
		&::after {
			border: 10px solid transparent;
			border-bottom-color: $color-main-background;
			bottom: 0;
			content: ' ';
			height: 0;
			width: 0;
			position: absolute;
			pointer-events: none;
			right: 13px;
			z-index: 2001;
			display: none;
		}
	}
}