Code Playground

@charset "UTF-8";
@import url(https://fonts.googleapis.com/css?family=Nunito+Sans:300,400,600,700,800);
*,
:after,
:before {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
body {
  overflow: hidden;
  background: #0d0d0d;
}

.hamburger {
  position: fixed;
  top: 30px;
  right: 50%;
  transform: translateX(50%);
  
  background-color: #f1f1f1;
  border-radius: 150px;
  height: 50px;
  width: 50px;
  outline: 1px solid blue;
  
  display: flex;
  justify-content: center;
  align-items: center;
}
.line {
  position: absolute;
  display: block;
  height: 2.5px;
  background-color: #0d0d0d;
  transition: transform 0.3s ease-out, opacity 0.1s ease-out 0.3s
}

.l1 {
  transform: translateY(-10px);
  width: 50%;
}
.l2 {
  width: 75%;
}
.l3 {
  transform: translateY(10px);
  width: 50%;
}

.hamburger.active .l1 {
  transform: translateY(0);
  width: 75%;
  transform: rotate(135deg);
}
.hamburger.active .l2 {
  opacity: 0;
}
.hamburger.active .l3 {
	transform: translateY(0);
  width: 75%;
  transform: rotate(-135deg); 
}

Frontend Forever App