*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  min-height: 100vh;
  background: linear-gradient(45deg, #008B8B, #FF8C00);
}
.navgation{
  position: fixed;
  top: 20px;
  right: 20px;
  height: 20px;
  width: 250px;
  z-index: 99;
}
.toggle{
  position: relative;
  top: 0;
  left:0;
  width: 250px;
  height: 50px;
  background: #fff;
  cursor: pointer;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  color: #ff216d;
  padding: 10px 20px;
}
.toggle::before{
  content: 'Menu';
  margin-right: 10px;
}
.toggle.active::before{
  content: 'Close';
}
.toggle span{
  position: relative;
  width: 20px;
  height: 50px;
}
.toggle span::before{
  content: '';
  position: absolute;
  top:20px;
  left:0;
  width: 100%;
  height: 2px;
  background: #ff216d;
  transition: .5s;
}
.toggle span::after{
  content: '';
  position: absolute;
  bottom:20px;
  left:0;
  width: 100%;
  height: 2px;
  background: #ff216d;
  transition: .5s;
}

.toggle.active span::before{
  transform: rotate(225deg);
  top: 24px;
}
.toggle.active span::after{
  transform: rotate(135deg);
  bottom: 24px;
}
ul{
  position: relative;
  flex-direction: column;
}
ul li{
  position: relative;
  list-style: none;
  transition: .5s;
  visibility: hidden;
  opacity: 0;
  transform: translateX(-250px);
  transition-delay: calc(0.1s * var(--i));
}
.navgation.active ul li{
  visibility: visible;
  opacity: 1;
  transform: translateX(0);
}
ul li a{
  position: relative;
  text-decoration: none;
  display: block;
  padding: 10px 20px;
  height: 50px;
  background: #fff;
  color: #333;
  transition: .2s;
  line-height: 30px;
}
ul li a:hover{
  background: #f6f6f6;
  color: #ff216d;
}