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HTML

              
                		<div class="container">
			<div class="menu-btn">
				<span class="top"></span>
				<span class="mid"></span>
				<span class="bot"></span>
			</div>
			<div id="nav">
				<ul class="nav-inner">
					<li>
						<a href="#">about</a>
					</li>
					<li>
						<a href="#">portfolio</a>
					</li>
					<li>
						<a href="#">works</a>
					</li>
					<li>
						<a href="#">Skills</a>
					</li>
					<li>
						<a href="#">Contact</a>
					</li>
				</ul>
			</div>
			<div id="style-box">
				<div class="box-inner">
					<h1>slide toggle menu <span>- chris li</span></h1>
					<ul>
						<li class="leftslide" data-styles="leftslide">left slide</li>
						<li class="fadein" data-styles="fadein">fade in</li>
						<li class="topslide" data-styles="topslide">top slide</li>
						<li class="pushslide" data-styles="pushslide">push slide</li>
					</ul>
				</div>
			</div>
		</div>
              
            
!

CSS

              
                $white:#ffffff;
$black:#000000;
$maincolor:#3BD9B5;
$secondcolor:#6f58ee;

*, *:before, *:after {
	box-sizing:border-box;
}

body,html {
	width: 100%;
	height: 100%;
  font-family: 'Roboto', sans-serif;
}

ul {
	padding: 0;
	margin: 0;
	list-style: none;
}

.container {
	width: 100%;
	height: 100vh;
	overflow: hidden;
	.menu-btn {
		width: 50px;
		height: 50px;
		position: fixed;
		z-index: 10;
		top: 30px;
		left: 30px;
		cursor: pointer;
		transition: transform .3s ease-in-out;
		&:hover span{
			background-color: lighten($maincolor,15%);
		}
		&.active {
			transform: rotate(180deg);
			span {
				transition: transform .3s ease-in-out,
							opacity .3s ease-in-out;
				&.top {
					transform: rotate(45deg);
					transform-origin: left center;
					top: (50px - 4px)/2 - 14px;
					left: (50px - 40px + (40px/1.6)/2)/2;
				}
				&.mid {
					opacity: 0;
					left: (50px - 40px + (40px/1.6)/2)/2;
				}
				&.bot {
					transform: rotate(-45deg);
					transform-origin: left center;
					top: (50px - 4px)/2 + 14px;
					left: (50px - 40px + (40px/1.6)/2)/2;
				}
			}
		}
		span {
			display: block;
			width: 40px;
			height: 4px;
			background-color: $maincolor;
			position: absolute;
			top: (50px - 4px)/2;
			left: (50px - 40px)/2;
			border-radius: 2px;
			transition: background-color .3s ease-in-out;
			&.top {
				top: (50px - 4px)/2 - 12px;
			}
			&.bot {
				top: (50px - 4px)/2 + 12px;
			}
		}
	}

	#nav {
		display: flex;
		justify-content: center;
		align-items: center;
		opacity: 0;
		z-index: -1;
		transition: transform .3s ease-in-out,
					opacity .3s ease-in-out;
		&.leftslide {
			width: 250px;
			height: 100vh;
			background-color: $white;
			position: fixed;
			top: 0;
			left: 0;
			transform: translate3d(-300px, 0px, 0px);
		}
		&.fadein {
			width: 100%;
			height: 100vh;
			background-color: $white;
			position: fixed;
			top: 0;
			left: 0;
			text-align: center;
		}
		&.topslide {
			width: 100%;
			height: 100vh;
			background-color: $white;
			position: fixed;
			top: 0;
			left: 0;
			transform: translate3d(0px, -100%, 0px);
			text-align: center;
		}
		&.pushslide {
			width: 250px;
			height: 100vh;
			background-color: $white;
			position: fixed;
			top: 0;
			left: 0;
			transform: translate3d(0px, 0px, 0px);
		}
		&.open {
			transform: translate3d(0px, 0px, 0px);
			opacity: 1;
			z-index: 5;
			transition: transform .3s ease-in-out,
						opacity .3s ease-in-out;
			.nav-inner {
				li {
					animation: fadeInRight .4s ease forwards;
					animation-delay: .3s;
					&:nth-of-type(1) {
						animation-delay: .35s;
					}
					&:nth-of-type(2) {
						animation-delay: .4s;
					}
					&:nth-of-type(3) {
						animation-delay: .45s;
					}
					&:nth-of-type(4) {
						animation-delay: .5s;
					}
					&:nth-of-type(5) {
						animation-delay: .55s;
					}
				}
			}
		}
		.nav-inner {
			li {
				position: relative;
				margin-bottom: 30px;
				opacity: 0;
				transition: transform .3s ease-in-out;
				a {
					display: inline-block;
					height: 100%;
					text-decoration: none;
					color: lighten($black,30%);
					font-size: 30px;
					text-transform: capitalize;
					letter-spacing: 1px;
					font-weight: 800;
					padding: 4px 8px;
					transition: all .2s ease-in-out;
					&:before {
						content: "";
						position: absolute;
						left: -30px;
						top: 50%;
						display: block;
						width: 8px;
						height: 8px;
						border-radius: 50%;
						background-color: $maincolor;
						opacity: 0;
						transition: all .3s ease-in-out;
					}
					&:hover {
						background-color: $secondcolor;
						color: $white;
						transform: translate3d(15px ,0 ,0);
						&:before {
								content: "";
								left: -15px;
								opacity: 1;
						}
					}
				}
			}
		}
	}


	#style-box {
		width: 100%;
		height: 100vh;
	    background-image: url('data:image/svg+xml;base64,<?xml version="1.0" encoding="utf-8"?>
<!-- Generator: Adobe Illustrator 19.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
	 viewBox="0 0 800 823.4" style="enable-background:new 0 0 800 823.4;" xml:space="preserve">
<style type="text/css">
	.st0{fill:#40414B;}
</style>
<path class="st0" d="M55.2,169c-0.4,0-0.8,0-1.2-0.1c-2.3-0.3-4.3-1.5-5.7-3.3l-8.9-11.7c-1.4-1.8-2-4.1-1.7-6.3
	c0.3-2.3,1.5-4.3,3.3-5.7l11.7-8.9c1.8-1.4,4.1-2,6.3-1.7c2.3,0.3,4.3,1.5,5.7,3.3l8.9,11.7c1.4,1.8,2,4.1,1.7,6.3
	c-0.3,2.3-1.5,4.3-3.3,5.7l-11.7,8.9C58.9,168.4,57.1,169,55.2,169z M58,137.2c-0.6,0-1.1,0.2-1.6,0.5l-11.7,8.9
	c-0.5,0.4-0.9,1-1,1.7c-0.1,0.7,0.1,1.4,0.5,1.9l8.9,11.7c0.4,0.5,1,0.9,1.7,1c0.7,0.1,1.4-0.1,1.9-0.5l11.7-8.9l0,0
	c0.5-0.4,0.9-1,1-1.7s-0.1-1.4-0.5-1.9L60,138.2c-0.4-0.5-1-0.9-1.7-1C58.2,137.2,58.1,137.2,58,137.2z"/>
<path class="st0" d="M604.7,532.2c-0.5,0-1.1-0.1-1.6-0.2l0,0l-14.5-2.8c-4.6-0.9-7.7-5.4-6.8-10l2.8-14.5c0.9-4.6,5.4-7.7,10-6.8
	l14.5,2.8c2.2,0.4,4.2,1.7,5.5,3.6c1.3,1.9,1.8,4.2,1.3,6.4l-2.8,14.5c-0.4,2.2-1.7,4.2-3.6,5.5C608,531.7,606.4,532.2,604.7,532.2z
	 M604.2,526.1c0.7,0.1,1.4,0,1.9-0.4c0.6-0.4,1-1,1.1-1.6l2.8-14.5c0.1-0.7,0-1.4-0.4-1.9c-0.4-0.6-1-1-1.6-1.1l-14.5-2.8
	c-1.4-0.3-2.7,0.6-3,2l-2.8,14.5c-0.3,1.4,0.6,2.7,2,3L604.2,526.1z"/>
<path class="st0" d="M101.7,601.9c-1.7,0-3.4-0.5-4.9-1.6c-1.9-1.3-3.1-3.3-3.5-5.5L88,564.7c-0.8-4.7,2.3-9.1,7-9.9l7.6-1.3
	c2.3-0.4,4.5,0.1,6.4,1.4c1.9,1.3,3.1,3.3,3.5,5.5l5.3,30.1c0.8,4.7-2.3,9.1-7,9.9h0l-7.6,1.3C102.7,601.8,102.2,601.9,101.7,601.9z
	 M110.3,597.5L110.3,597.5L110.3,597.5z M104,559.3c-0.1,0-0.3,0-0.5,0l-7.6,1.3c-1.4,0.2-2.3,1.6-2.1,3l5.3,30.1
	c0.1,0.7,0.5,1.3,1.1,1.7c0.6,0.4,1.2,0.5,1.9,0.4l7.6-1.3c1.4-0.2,2.3-1.6,2.1-3l-5.3-30.1c-0.1-0.7-0.5-1.3-1.1-1.7
	C105.1,559.5,104.5,559.3,104,559.3z"/>
<path class="st0" d="M720,747.5c-7.7,0-13.9-6.3-13.9-13.9s6.3-13.9,13.9-13.9s13.9,6.3,13.9,13.9S727.7,747.5,720,747.5z
	 M720,725.6c-4.4,0-7.9,3.6-7.9,7.9s3.6,7.9,7.9,7.9s7.9-3.6,7.9-7.9S724.4,725.6,720,725.6z"/>
<path class="st0" d="M271.5,82.2c-12.2,0-22-9.9-22-22s9.9-22,22-22s22,9.9,22,22S283.6,82.2,271.5,82.2z M271.5,44.1
	c-8.8,0-16,7.2-16,16c0,8.8,7.2,16,16,16c8.8,0,16-7.2,16-16C287.5,51.3,280.3,44.1,271.5,44.1z"/>
<path class="st0" d="M753.2,364.1c-1.3,0-2.4-0.8-2.9-2.1c-3.7-11.4,2.5-23.8,14-27.5c11.4-3.7,23.8,2.5,27.5,14
	c0.5,1.6-0.3,3.3-1.9,3.8c-1.6,0.5-3.3-0.3-3.8-1.9c-2.7-8.3-11.6-12.8-19.9-10.1c-8.3,2.7-12.8,11.6-10.1,19.9
	c0.5,1.6-0.3,3.3-1.9,3.8C753.9,364,753.6,364.1,753.2,364.1z"/>
<path class="st0" d="M253.4,715.6c-0.6,0-1.3-0.2-1.8-0.6c-1.3-1-1.6-2.9-0.6-4.2c2.5-3.4,3.6-7.5,3-11.7c-0.6-4.2-2.8-7.9-6.2-10.4
	c-3.4-2.5-7.5-3.6-11.7-3c-4.2,0.6-7.9,2.8-10.4,6.2c-1,1.3-2.9,1.6-4.2,0.6c-1.3-1-1.6-2.9-0.6-4.2c3.5-4.7,8.6-7.7,14.4-8.5
	c5.8-0.8,11.5,0.7,16.2,4.2c4.7,3.5,7.7,8.6,8.5,14.4c0.8,5.8-0.7,11.5-4.2,16.2C255.2,715.2,254.3,715.6,253.4,715.6z"/>
<path class="st0" d="M473.4,301.1c-0.9,0-1.8-0.4-2.3-1.1l-18.9-23.7c-0.8-0.9-0.9-2.3-0.3-3.3l14.6-26.5c0.5-0.9,1.4-1.5,2.4-1.5
	c1-0.1,2,0.3,2.6,1.1l18.9,23.7c0.8,0.9,0.9,2.3,0.3,3.3l-14.6,26.5c-0.5,0.9-1.4,1.5-2.4,1.5C473.6,301.1,473.5,301.1,473.4,301.1z
	 M458.2,274.1l14.8,18.6l11.5-20.8l-14.8-18.6L458.2,274.1z"/>
<path class="st0" d="M150.3,358.7c-0.5,0-0.9-0.1-1.4-0.3c-1.1-0.6-1.7-1.7-1.6-3l4-42.7c0.1-1,0.7-1.9,1.6-2.4
	c0.9-0.5,1.9-0.5,2.8,0l28,14.7c0.9,0.5,1.5,1.3,1.6,2.3c0.1,1-0.3,2-1,2.6l-32,28C151.8,358.5,151,358.7,150.3,358.7z M156.9,317.8
	l-2.9,30.7l23-20.2L156.9,317.8z"/>
<path class="st0" d="M781.8,549.4c-0.1,0-0.2,0-0.3,0l-31.4-3.2c-1-0.1-1.9-0.7-2.3-1.6s-0.5-1.9,0-2.8l19.3-37.9
	c0.6-1.1,1.7-1.7,3-1.6c1.2,0.1,2.3,1,2.6,2.1l12.1,41.1c0.3,1,0.1,2-0.6,2.8C783.5,549,782.6,549.4,781.8,549.4z M755,540.6
	l22.6,2.3l-8.7-29.6L755,540.6z"/>
<path class="st0" d="M583.1,375.6l7.2,9.6c1.2,1.6,3.8,1.2,4.4-0.7l4-11.7c0.6-1.8-1-3.6-2.8-3.3l-11.1,2.1
	C582.9,371.9,582,374.1,583.1,375.6z"/>
<path class="st0" d="M477.5,753.4c-0.9,0-1.7-0.4-2.3-1.1L455,728.1c-0.6-0.8-0.9-1.8-0.6-2.7s1-1.7,1.9-2l28-9.5
	c1-0.4,2.2-0.1,3,0.6c0.8,0.7,1.2,1.8,0.9,2.9l-7.8,33.8c-0.3,1.1-1.1,2-2.2,2.2C478,753.4,477.8,753.4,477.5,753.4z M462.4,727.6
	l13.6,16.3l5.2-22.6L462.4,727.6z"/>
<path class="st0" d="M380.3,546.1H345c-1.7,0-3-1.3-3-3s1.3-3,3-3h32.3v-30.3c0-1.7,1.3-3,3-3s3,1.3,3,3v33.3
	C383.3,544.7,382,546.1,380.3,546.1z"/>
<path class="st0" d="M702.3,100.7H677c-1.1,0-2.1-0.6-2.6-1.6c-0.5-1-0.5-2.1,0.1-3.1l25.3-40c0.7-1.1,2.1-1.6,3.4-1.3
	c1.3,0.4,2.2,1.5,2.2,2.9v40C705.3,99.4,704,100.7,702.3,100.7z M682.5,94.7h16.9V68.1L682.5,94.7z"/>
<path class="st0" d="M663.7,260.1c-1.4,0-2.7-1-2.9-2.4l-8-41.3c-0.3-1.6,0.7-3.2,2.4-3.5c1.6-0.3,3.2,0.7,3.5,2.4l8,41.3
	c0.3,1.6-0.7,3.2-2.4,3.5C664,260,663.9,260.1,663.7,260.1z"/>
<path class="st0" d="M471.3,123.4c-0.6,0-1.1-0.2-1.7-0.5l-34.3-22.7c-1.4-0.9-1.8-2.8-0.8-4.2c0.9-1.4,2.8-1.8,4.2-0.8l34.3,22.7
	c1.4,0.9,1.8,2.8,0.8,4.2C473.2,122.9,472.3,123.4,471.3,123.4z"/>
<path class="st0" d="M353.2,394.4l-7.5-3.1c-1.6-0.7-2.4-2.5-1.7-4.1l3.1-7.5c0.7-1.6,2.5-2.4,4.1-1.7l7.5,3.1
	c1.6,0.7,2.4,2.5,1.7,4.1l-3.1,7.5C356.6,394.3,354.8,395,353.2,394.4z"/>
<path class="st0" d="M501,604.2l-6.8,4.4c-1.4,0.9-3.4,0.5-4.3-0.9l-4.4-6.8c-0.9-1.4-0.5-3.4,0.9-4.3l6.8-4.4
	c1.4-0.9,3.4-0.5,4.3,0.9l4.4,6.8C502.9,601.3,502.5,603.2,501,604.2z"/>
<circle class="st0" cx="298" cy="205.2" r="7.4"/>
<circle class="st0" cx="40.3" cy="750.4" r="7.4"/>
<path class="st0" d="M681,678.7c-0.8,0-1.6-0.3-2.2-0.9l-25.3-26.7c-1.1-1.2-1.1-3.1,0.1-4.2c1.2-1.1,3.1-1.1,4.2,0.1l25.3,26.7
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<path class="st0" d="M16.3,282.7c-1.4,0-2.7-1-3-2.5c-0.3-1.6,0.8-3.2,2.5-3.5l24-4c1.6-0.3,3.2,0.8,3.5,2.5
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<path class="st0" d="M135.7,44.1c-1.7,0-3-1.3-3-3V17c0-1.7,1.3-3,3-3s3,1.3,3,3v24C138.7,42.8,137.3,44.1,135.7,44.1z"/>
<path class="st0" d="M193.7,502c-0.8,0-1.7-0.3-2.2-1c-1.1-1.2-1-3.1,0.3-4.2l29.3-26c1.2-1.1,3.1-1,4.2,0.3c1.1,1.2,1,3.1-0.3,4.2
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</svg>
'),linear-gradient(90deg, #6f58ee 0%, #7434f3 100%);
		text-align: center;
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		position: relative;
		z-index: 3;
		transition: transform .3s ease-in-out;
		&.leftslide,&.fadein,&.topslide,&.pushslide {
			&:before {
				content: "";
				position: absolute;
				top: 0;
				left: 0;
				width: 100%;
				height: 100%;
				z-index: 5;
				background-color: rgba($black,.3);
			}
		}
		&.pushslide {
			transform: translate3d(250px,0,0);
			transition: transform .3s ease-in-out;
			z-index: 5;
		}
		.box-inner {
			h1 {
				margin-top: 0;
				padding: 10px;
				text-transform: uppercase;
				color: $white;
				span {
					font-style: italic;
					font-size: 20px;
				}
			}
			ul {
				li {
					display: inline-block;
					padding: 10px 15px;
					margin-right: 10px;
					margin-bottom: 10px;
					background-color: $maincolor;
					text-transform: capitalize;
					border-radius: 4px;
					cursor: pointer;
					color: $white;
					border: 2px solid $maincolor;
					transition: background-color .2s ease-in;
					&:last-child {
						margin-right: 0;
					}
					&:hover, &.now {
						background-color: transparent;
					}
				}
			}
		}
	}
}

@keyframes fadeInRight {
  0% {
	    opacity: 0;
	    left: 30px;
	}
  100% {
	    opacity: 1;
	    left: 0px;
	}
}
              
            
!

JS

              
                $(document).ready(function() {

	var $menuBtn = $('.menu-btn');
	var $nav = $('#nav');
	var $stylebox = $('#style-box');
	var $styleli = $stylebox.find('li');

	$menuBtn.on('click', function() {
		var $this = $(this);
		var styles = $stylebox.data('styles');
		$this.toggleClass("active");
		$this.next('#nav').toggleClass("open");
		$stylebox.toggleClass(styles);
	});

	$nav.addClass('leftslide');

	$styleli.on('click', function() {
		var $this = $(this);
		$this.siblings().removeClass('now');
		$this.addClass('now');
		var styles = $this.data('styles');
		$nav.removeClass();
		$nav.addClass(styles);
		$nav.siblings('#style-box').removeClass();
		$nav.siblings('#style-box').data('styles',styles);
	});



});
              
            
!
999px

Console