<h1>
  Click on the hamburger icon →
</h1>
<div  class="open">
	<span class="cls"></span>
	<span>
		<ul class="sub-menu ">
			<li>
				<a href="#about" title="about">Sobre / About</a>
			</li>
			<li>
				<a href="#skills" title="skills">Habilidades / Skills</a>
			</li>
			<li>
				<a href="#jobs" title="jobs">Trabalhos / Jobs</a>
			</li>
			<li>
				<a href="#contact" title="contact">Contato / Contact</a>
			</li>
		</ul>
	</span>
	<span class="cls"></span>
</div>


<!-- <a href="https://codepen.io/sergioandrade/pen/pXmKJv" class="button" title="Check out my new Pen">Check out my new Pen</a> -->

<div class="container">
  Check out my new pen
  <br>
  <br>
</div>
<div class="container">  
  <a href="https://codepen.io/sergioandrade/full/pXmKJv" target="_blank" class="card">
    <img src="https://pbs.twimg.com/card_img/1150575454346194947/R5b7DGbV?format=png&name=600x314" alt="">
    <figcaption>
      Countdown with grid css
    </figcaption>
  </a>

</div>
html{
	box-sizing: border-box;
}
*, *:after,*:before{
	box-sizing: inherit;
}
a{
	color: #333;
	text-decoration: none;
}
html{
  width: 100%;
   height: 100%;
}
body{
	background: #161616;
  width: 100%;
  height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  color: #fff;
  padding: 60px;
}
h1{
  width: 100%;
  text-align: center;
  padding: 40px 0;
}
.open{
	position: fixed;
	top: 40px;
	right: 40px;
	width: 50px;
	height: 50px;
	display: block;
	cursor: pointer;
	transition: opacity 0.2s linear;
	&:hover{
		opacity: 0.8;
	}
	span{
		display: block;
		float: left;
		clear: both;
		height: 4px;
		width: 40px;
		border-radius: 40px;
		background-color: #fff;
		position: absolute;
		right: 3px;
		top: 3px;
		overflow: hidden;
		transition: all 0.4s ease;
		&:nth-child(1){
			margin-top: 10px;
			z-index: 9;
		}
		&:nth-child(2){
			margin-top: 25px;
		}
		&:nth-child(3){
			margin-top: 40px;
		}
	}
}
.sub-menu{
	transition: all 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
		height: 0;
		width: 0;
		right: 0;
		top: 0;
		position: absolute;
		background-color: rgba(38, 84, 133, 0.54);
		border-radius: 50%;
		z-index: 18;
		overflow: hidden;
		li{
			display: block;
			float: right;
			clear: both;
			height: auto;
			margin-right: -160px;
			transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
			&:first-child{
				margin-top: 180px;
			}
			&:nth-child(1){
				-webkit-transition-delay: 0.05s;
			}
			&:nth-child(2){
				-webkit-transition-delay: 0.10s;
			}
			&:nth-child(3){
				-webkit-transition-delay: 0.15s;
			}
			&:nth-child(4){
				-webkit-transition-delay: 0.20s;
			}
			&:nth-child(5){
				-webkit-transition-delay: 0.25s;
			}
			a{
				color: #fff;
				font-family: 'Lato', Arial, Helvetica, sans-serif;
				font-size: 16px;
				width: 100%;
				display: block;
				float: left;
				line-height: 40px;
			}
		}
	}

	.oppenned{
		.sub-menu{
			opacity: 1;
			height: 400px;
			width: 400px;
		}
		span:nth-child(2){
			overflow: visible;
		}
		span:nth-child(1), span:nth-child(3){
			z-index: 100;
			transform: rotate(45deg);
		}
		span:nth-child(1){
			transform: rotate(45deg) translateY(12px) translateX(12px);
		}
		span:nth-child(2){
			height: 400px;
			width: 400px;
			right: -160px;
			top: -160px;
			border-radius: 50%;
			background-color: rgba(38, 84, 133, 0.54);
		}
		span:nth-child(3){			
			transform: rotate(-45deg) translateY(-10px) translateX(10px);
		}
		li{
			margin-right: 168px;
		}
	}
.button{
	display: block;
	float: left;
  clear: both;
	padding: 20px 40px;
	background: #fff;
	border-radius: 3px;
	border: 2px solid #10a1ea;
	overflow: hidden;
	position: relative;
	&:after{
		transition: transform 0.3s ease;
		content: "";
		position: absolute;
		height: 200px;
		width: 400px;
		transform: rotate(45deg) translateX(-540px) translateY(-100px);
		background: #10a1ea;
		z-index: 1;
	}
	&:before{
		transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
		content: attr(title);
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		color: #fff;
		z-index: 2;
		text-align: center;
		padding: 20px 40px;
		transform: translateY(200px);
	}
	&:hover{
		text-decoration: none;
		&:after{
			transform: translateX(-300px) translateY(-100px);
		}
		&:before{
			transform: translateY(0);
		}
	}
}


.container {
  display: flex;
  max-width: 80%;
  justify-content: center;
  margin: 0 auto;
}
.card {
  position: relative;
  z-index: 10;
  width: 280px;
  border-radius: 4px;
  padding-bottom: 40px;
  background: #131e32;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  
  figcaption {
    position: absolute;
    bottom: 0;
    padding: 10px;
    color: #fff;
  }
  
  img {
    max-width: 100%;
    border: 1px solid #222;
    transition: .4s;
  }
  
  &:hover {
    img {
      transform: scale(1.1);
    }
  }
}
View Compiled
$(document).ready(function() {
		$(document).delegate('.open', 'click', function(event){
			$(this).addClass('oppenned');
			event.stopPropagation();
		})
		$(document).delegate('body', 'click', function(event) {
			$('.open').removeClass('oppenned');
		})
		$(document).delegate('.cls', 'click', function(event){
			$('.open').removeClass('oppenned');
			event.stopPropagation();
		});
	});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js