Seenginx/Seenginx/SCSS/side-menu.scss

body {
	color: #777;
}

:root {
	--leftPanel: 150px;
	--negativeLeftPanel: -150px;
	--mobileLeftPanel: 150px;
	--mobileNegativeLeftPanel: -150px;
}

.pure-img-responsive {
	max-width: 100%;
	height: auto;
}

/*
Add transition to containers so they can push in and out.
*/
#layout,
#menu,
.menu-link {
	-webkit-transition: all 0.2s ease-out;
	-moz-transition: all 0.2s ease-out;
	-ms-transition: all 0.2s ease-out;
	-o-transition: all 0.2s ease-out;
	transition: all 0.2s ease-out;
}

/*
This is the parent `<div>` that contains the menu and the content area.
*/
#layout {
	position: relative;
	left: 0;
	padding-left: 0;

	&.active {

		& .menu-link {
			left: var(--leftPanel);
		}

		& #menu {
			left: var(--leftPanel);
			width: var(--leftPanel);
		}
	}
}

/*
The `#menu` `<div>` is the parent `<div>` that contains the `.pure-menu` that
appears on the left side of the page.
*/

#menu {
	margin-left: var(--negativeLeftPanel); /* "#menu" width */
	width: var(--leftPanel);
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	z-index: 1000; /* so the menu or its navicon stays above all content */
	background: #191818;
	overflow-y: auto;
	-webkit-overflow-scrolling: touch;
	//All anchors inside the menu should be styled like this.
	& a {
		color: #999;
		border: none;
		padding: 0.6em 0 0.6em 0.6em;
	}
	//Remove all background/borders, since we are applying them to #menu.
	& .pure-menu,
	& .pure-menu ul {
		border: none;
		background: transparent;
	}
	//Add that light border to separate items into groups.
	& .pure-menu ul,
	& .pure-menu .menu-item-divided {
		border-top: 1px solid #333;
	}
	//Change color of the anchor links on hover/focus.
	& .pure-menu li a:hover,
	& .pure-menu li a:focus {
		background: #333;
	}
	//This styles the selected menu item `<li>`.
	& .pure-menu-selected,
	& .pure-menu-heading {
		background: #1f8dd6;
	}
	//This styles a link within a selected menu item `<li>`.
	& .pure-menu-selected a {
		color: #fff;
	}
	//This styles the menu heading.
	& .pure-menu-heading {
		font-size: 110%;
		color: #fff;
		margin: 0;
	}
}

/* -- Dynamic Button For Responsive Menu -------------------------------------*/

/*
The button to open/close the Menu is custom-made and not part of Pure. Here's
how it works:
*/

/*
`.menu-link` represents the responsive menu toggle that shows/hides on
small screens.
*/
.menu-link {
	position: fixed;
	display: block; /* show this only on small screens */
	top: 0;
	left: 0; /* "#menu width" */
	background: #000;
	background: rgba(0,0,0,0.7);
	font-size: 16px; /* change this value to increase/decrease button size */
	z-index: 10;
	width: min-content;
	height: auto;
	padding: 14px;

	&:hover,
	&:focus {
		background: #000;
	}
}



/* -- Responsive Styles (Media Queries) ------------------------------------- */

/*
Hides the menu at `48em`, but modify this based on your app's needs.
*/
@media (min-width: 48em) {

	.header,
	.content {
		padding-left: 2em;
		padding-right: 2em;
	}

	#layout {
		padding-left: var(--leftPanel); /* left col width "#menu" */
		left: 0;
	}

	#menu {
		left: var(--leftPanel);
	}

	.menu-link {
		position: fixed;
		left: var(--leftPanel);
		display: none;
	}

	#layout.active .menu-link {
		left: var(--leftPanel);
	}
}

@media (max-width: 48em) {
	/* Only apply this when the window is small. Otherwise, the following
    case results in extra padding on the left:
        * Make the window small.
        * Tap the menu to trigger the active state.
        * Make the window large again.
    */
	#layout.active {
		position: relative;
		left: var(--leftPanel);
	}
}