<div class="container">
			<div class='menu'>
			  <input class='toggle' id='menu' type='checkbox'>
			  <label class='style' for='menu'>
			  	<i class="fa fa-bars" aria-hidden="true"></i>
			  </label>
			  <a class='tab' href='#'>
			  	<p>I</p>
			  </a>
			  <a class='tab' href='#'>
			  	<p>II</p>
			  </a>
			  <a class='tab' href='#'>
			  	<p>III</p>
			  </a>
			  <a class='tab' href='#'>
			  	<p>IV</p>
			  </a>
			  <a class='tab' href='#'>
			  	<P>V</P>
			  </a>
			  <a class='tab' href='#'>
			  	<P>VI</P>
			  </a>
			</div><!-- menu -->
		</div><!-- container -->

*{
  margin: 0;
  padding: 0;
}

a{
  text-decoration: none;
}

.menu {
  position: relative;
  margin-top: 15%;
  left: 50%;
  width: 0px;
  transform: translate(-50%, 55%);
}

.toggle {
  display: none;
}

.toggle + .style {
    width: 200px;
    height: 124px;
    border-radius: 50%;
    cursor: pointer;
    transform: translate(-50%, -50%) scale(1);
    z-index: 5;
    display: block;
    max-width: 200px;
    margin-bottom: 0;
    background: #ff0000;
    color: #fff;
    font-size: 2.5em;
    padding-top: 75px;
    text-align: center;
   -webkit-transition: all .8s;
   -moz-transition: all .8s;
   -o-transition: all .8s;
   -ms-transition: all .8s;
   transition: all .8s;
}

.menu p{
    max-width: 85px;
    text-align: center;
    margin: 0 auto;
    line-height: 15px;
    padding-top: 50px;
    font-weight: 700;
    font-size: 2em;
}

.toggle + .style:hover{
	-webkit-box-shadow: 0px 1px 20px 0px rgba(0, 0, 0, .7);
    -moz-box-shadow: 0px 1px 20px 0px rgba(0, 0, 0, .7);
    -ms-box-shadow: 0px 1px 20px 0px rgba(0, 0, 0, .7);
    -o-box-shadow: 0px 1px 20px 0px rgba(0, 0, 0, .7);
    box-shadow: 0px 1px 20px 0px rgba(0, 0, 0, .7);
}

.toggle:checked + .style {
  transform: translate(-50%, -50%) scale(.5);
}

.menu input[type=checkbox] + label:before {
    content: "";
    position: absolute;
}

.toggle + .style:before, .toggle + .style:after {
  content: "";
  position: absolute;
  margin: -3px;
  border-radius: 5px;
  transition: all 0.3s;
}

.toggle + .style:before {
  width: 30px;
  height: 0px;
  left: 10px;
  top: 25px;
}

.toggle + .style:after {
  width: 0px;
  height: 30px;
  left: 25px;
  top: 10px;
}

.toggle:checked + .style:before, .toggle:checked + .style:after {
  transform: rotate(135deg);
}

.toggle ~ .tab {
    position: absolute;
    background: #ff0000;
    color: #fff;
    width: 120px;
    height: 120px;
    left: 0px;
    top: 0px;
    transform: translate(-50%, -50%) scale(0);
    transition: all 0.3s;
    opacity: 0;
    border-radius: 50%;
}

.toggle:checked ~ .tab {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.menu > .toggle:checked ~ .tab:nth-of-type(1) {
  top: -122px;
  left: 0px;
  transition-delay: 0s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(2) {
  top: -74px;
  left: 120px;
  transition-delay: 0.125s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(3) {
  top: 56px;
  left: 115px;
  transition-delay: 0.25s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(4) {
  top: 122px;
  left: 0px;
  transition-delay: 0.375s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(5) {
  top: 56px;
  left: -115px;
  transition-delay: 0.5s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(6) {
  top: -74px;
  left: -120px;
  transition-delay: 0.625s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(7) {
  top: 0px;
  left: -133.33333px;
  transition-delay: 0.75s;
}

.menu > .toggle:checked ~ .tab:nth-of-type(8) {
  top: -94.2809px;
  left: -94.2809px;
  transition-delay: 0.875s;
}