<div class="container">
    <!-- This checkbox will give us the toggle behavior, it will be hidden, but functional -->
    <input id="toggle" type="checkbox">

    <!-- IMPORTANT: Any element that we want to modify when the checkbox state changes go here, being "sibling" of the checkbox element -->

    <!-- This label is tied to the checkbox, and it will contain the toggle "buttons" -->
    <label class="toggle-container" for="toggle">
        <!-- If menu is open, it will be the "X" icon, otherwise just a clickable area behind the hamburger menu icon -->
        <span class="button button-toggle"></span>
    </label>

    <!-- The nav menu -->
    <nav class="nav">
        <a class="nav-item" href="http://naimjeem.jefcorp.com" target="_blank">Website</a>
        <a class="nav-item" href="https://www.freecodecamp.com/naimjeem" target="_blank">Free Code Camp</a>
      <a class="nav-item" href="https://www.github.com/naimjeem" target="_blank">Github</a>
        <a class="nav-item" href="https://www.facebook.com/naimjeem" target="_blank">Facebook</a>
       <a class="nav-item" href="https://twitter.com/naim_jeem" target="_blank">Twitter</a>
      <a class="nav-item" href="https://www.linkedin.com/in/naimjeem" target="_blank">Linkedin</a>
    </nav>

    <!-- Just dummy content like in the animated gif -->
    <section class="dummy-content">
      <div class=""><h1>Naim Jeem</h1></div>
        <div class="text">
            <span></span><span></span>
        </div>
        
    </section>
</div>

/* Basic styles */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
}
h1 {
  font-family: 'Kaushan Script', cursive;
}

body {
  font-family: sans-serif;
  
}

a {
  text-decoration: none;
}

.container {
  color: #C06162;
  position: relative;
  margin: 35px auto 0;
  width: 500px;
  height: 534px;
  background-color: #374E59;
  overflow: hidden;
}

/* Toggle functionality */
#toggle {
  position: absolute;
  left: -100%;
  top: -100%;
}

#toggle:focus ~ .toggle-container .button-toggle {
  box-shadow: 0 0 0 8px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1);
}

#toggle:checked ~ .toggle-container .button-toggle {
  box-shadow: 0 0 0 550px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1);
}
#toggle:checked ~ .toggle-container .button-toggle:hover {
  box-shadow: 0 0 0 550px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1), 0 0 0 8px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1);
}
#toggle:checked ~ .toggle-container .button-toggle:before {
  transform: translateY(-50%) rotate(45deg) scale(1);
}
#toggle:checked ~ .toggle-container .button-toggle:after {
  transform: translateY(-50%) rotate(-45deg) scale(1);
}
#toggle:checked:focus ~ .toggle-container .button-toggle {
  box-shadow: 0 0 0 550px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1), 0 0 0 8px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1);
}
#toggle:checked ~ .nav {
  margin-bottom: 100px;
  pointer-events: auto;
  transform: translate(50px, 50px);
}
#toggle:checked ~ .nav .nav-item {
  color: #EC7263;
  letter-spacing: 0;
  height: 40px;
  line-height: 40px;
  margin-top: 0;
  opacity: 1;
  transform: scaleY(1);
  transition: 0.5s, opacity 0.1s;
}
#toggle:checked ~ .nav .nav-item:nth-child(1) {
  transition-delay: 0.15s;
}
#toggle:checked ~ .nav .nav-item:nth-child(1):before {
  transition-delay: 0.15s;
}
#toggle:checked ~ .nav .nav-item:nth-child(2) {
  transition-delay: 0.1s;
}
#toggle:checked ~ .nav .nav-item:nth-child(2):before {
  transition-delay: 0.1s;
}
#toggle:checked ~ .nav .nav-item:nth-child(3) {
  transition-delay: 0.05s;
}
#toggle:checked ~ .nav .nav-item:nth-child(3):before {
  transition-delay: 0.05s;
}
#toggle:checked ~ .nav .nav-item:nth-child(4) {
  transition-delay: 0s;
}
#toggle:checked ~ .nav .nav-item:nth-child(4):before {
  transition-delay: 0s;
}
#toggle:checked ~ .nav .nav-item:before {
  opacity: 0;
}
#toggle:checked ~ .dummy-content {
  padding-top: 30px;
}
#toggle:checked ~ .dummy-content:before {
  background-color: rgba(0, 0, 0, 0.3);
}

/* Toggle button */
.button-toggle {
  position: absolute;
  display: inline-block;
  width: 20px;
  height: 20px;
  margin: 25px;
  background-color: transparent;
  border: none;
  cursor: pointer;
  border-radius: 100%;
  transition: 0.6s;
}
.button-toggle:hover {
  box-shadow: 0 0 0 8px rgba(0, 0, 0, 0.1), inset 0 0 0 20px rgba(0, 0, 0, 0.1);
}
.button-toggle:before, .button-toggle:after {
  position: absolute;
  content: '';
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #EC7263;
  border-radius: 5px;
  transition: 0.5s;
}
.button-toggle:before {
  transform: translateY(-50%) rotate(45deg) scale(0);
}
.button-toggle:after {
  transform: translateY(-50%) rotate(-45deg) scale(0);
}

/* Menu */
.nav {
  display: inline-block;
  margin: 25px 25px 20px;
  pointer-events: none;
  transition: 0.5s;
}

.nav-item {
  position: relative;
  display: inline-block;
  float: left;
  clear: both;
  color: transparent;
  font-size: 14px;
  letter-spacing: -6.2px;
  height: 7px;
  line-height: 7px;
  text-transform: uppercase;
  white-space: nowrap;
  transform: scaleY(0.2);
  transition: 0.5s, opacity 1s;
}
.nav-item:nth-child(1) {
  transition-delay: 0s;
}
.nav-item:nth-child(1):before {
  transition-delay: 0s;
}
.nav-item:nth-child(2) {
  transition-delay: 0.05s;
}
.nav-item:nth-child(2):before {
  transition-delay: 0.05s;
}
.nav-item:nth-child(3) {
  transition-delay: 0.1s;
}
.nav-item:nth-child(3):before {
  transition-delay: 0.1s;
}
.nav-item:nth-child(4) {
  transition-delay: 0.15s;
}
.nav-item:nth-child(4):before {
  transition-delay: 0.15s;
}
.nav-item:nth-child(1) {
  letter-spacing: -8px;
}
.nav-item:nth-child(2) {
  letter-spacing: -7px;
}
.nav-item:nth-child(n + 4) {
  letter-spacing: -8px;
  margin-top: -7px;
  opacity: 0;
}
.nav-item:before {
  position: absolute;
  content: '';
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #EC7263;
  transform: translateY(-50%) scaleY(5);
  transition: 0.5s;
}

/* Dummy content */
.dummy-content {
  position: relative;
  text-align: center;
  transition: 0.5s;
}
.dummy-content:before {
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: transparent;
  z-index: 2;
  transition: 0.5s;
}

.circle {
  display: inline-block;
  width: 75px;
  height: 75px;
  background-color: #EC7263;
  border-radius: 100%;
}

.text {
  margin: 15px 0 30px;
}
.text span {
  display: inline-block;
  height: 10px;
  margin: 0 5px;
  background-color: #C06162;
  border-radius: 5px;
}
.text span:first-child {
  width: 50px;
}
.text span:last-child {
  width: 80px;
}

.square-top {
  display: inline-block;
  position: relative;
  width: 200px;
  height: 300px;
  background-color: #FEBE7E;
  z-index: 1;
}

.square-behind {
  display: inline-block;
  position: relative;
  top: -256px;
  width: 250px;
  height: 210px;
  background-color: #C28683;
}
.square-behind:before, .square-behind:after {
  position: absolute;
  content: '';
  top: 0;
  width: 40%;
  height: 100%;
}
.square-behind:before {
  left: 0;
  background-color: #9D567C;
}
.square-behind:after {
  right: 0;
  background-color: #958C6B;
}