<body>

  <header>
    <a class='icon_menu'><span></span></a>
    <ul class='top_menu' id='menu_main'>
      <li><a href='' class='top_menu__item'>Туры</a></li>
      <li><a href='' class='top_menu__item'>Цены</a></li>
      <li><a href='' class='top_menu__item'>Аренда жилья</a></li>
      <li><a href='' class='top_menu__item'>Аренда снаряжения</a></li>
      <li><a href='' class='top_menu__item'>Окрестности</a></li>
    </ul>
  </header>

  <div class='main'>
    <h1>Отдыхайте в&nbsp;горах Колорадо</h1>
  </div>

</body>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: fixed url(https://image.ibb.co/h8pWCq/silverthorne.jpg) no-repeat;
  background-size: cover;
  font-family: 'Calibri';
}

a,
a:visited {
  text-decoration: none;
  color: #fff;
}

li {
  list-style-type: none;
}

.main {
  margin: 0 auto;
  width: 70%;
}

h1 {
  font-size: 4em;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #fff;
  text-align: center;
  margin-top: 20%;
}

.icon_menu {
	height: 32px;
	width: 43px;
  margin: 3%;
	position: relative;
	display: inline-block;
	vertical-align: middle;
	cursor: pointer;
	z-index: 20;
}

.icon_menu span {
	display: block;
	background: #fff;
	width: 100%;
	height: 4px;
	margin-top: -2px;
	position: absolute;
	left: 0;
	top: 50%;
	transition: all 0.3s ease;
}

.icon_menu:before,
.icon_menu:after {
	content: '';
	display: block;
	background: #fff;
	width: 100%;
	height: 4px;
	position: absolute;
	left: 0;
	transform-origin: center center;
	transform: rotate(0deg);
	transition: all 0.3s ease;
}

.icon_menu:before {
  top: 2px;
  margin-top: -2px;
}

.icon_menu:after {
  bottom: 2px;
  margin-bottom: -2px;
}

.menu_shown .icon_menu span {
  background: transparent;
}

.menu_shown .icon_menu:before {
	top: 50%;
	transform: rotate(45deg);
}

.menu_shown .icon_menu:after {
	bottom: 50%;
	transform: rotate(-45deg);
}

.top_menu {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	max-width: 460px;
	min-height: 100vh;
	text-align: center;
	padding-top: 112px;
	padding-bottom: 80px;
	background: #010005;
	z-index: 10;
	font-variant: small-caps;
	font-size: 20px;
	transition: all .4s ease-in-out;
	transform: translateX(-100%);
}

.menu_shown .top_menu {
	transform: translateX(0);
}

.top_menu__item {
	display: block;
	line-height: 2;
	padding: 25px 0;
	background: transparent;
	transition: all .3s ease;
	letter-spacing: .04em;
}

.top_menu__item:hover{
	background: rgba(123, 119, 193, 0.2);
}
$('.icon_menu').click(function(){
  $('body').toggleClass('menu_shown');
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://code.jquery.com/jquery-3.3.1.min.js