*, *:after, *:before {
  box-sizing: inherit;
}



.open {
  position: fixed;
  top: 20px;
  right: 40px;
  width: 50px;
  height: 50px;
  display: block;
  cursor: pointer;
  -webkit-transition: opacity 0.2s linear;
  transition: opacity 0.2s linear;
}
.open:hover {
  opacity: 0.8;
}
.open span {
  display: block;
  float: left;
  clear: both;
  height: 4px;
  width: 40px;
  border-radius: 40px;
  background-color: #fff;
  position: absolute;
  right: 3px;
  top: 3px;
  overflow: hidden;
  -webkit-transition: all 0.4s ease;
  transition: all 0.4s ease;
}
.open span:nth-child(1) {
  margin-top: 10px;
  z-index: 9;
}
.open span:nth-child(2) {
  margin-top: 25px;
}
.open span:nth-child(3) {
  margin-top: 40px;
}

.sub-menu {
	-webkit-transition: all 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
	transition: all 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
	height: 0;
	width: 0;
	right: 0;
	top: 0;
	position: absolute;
	background-color: rgba(227,108,38,0.54);
	border-radius: 50%;
	z-index: 18;
	overflow: hidden;
}
.sub-menu li {
  display: block;
  float: right;
  clear: both;
  height: auto;
  margin-right: -160px;
  -webkit-transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.sub-menu li:first-child {
  margin-top: 180px;
}
.sub-menu li:nth-child(1) {
  -webkit-transition-delay: 0.05s;
}
.sub-menu li:nth-child(2) {
  -webkit-transition-delay: 0.10s;
}
.sub-menu li:nth-child(3) {
  -webkit-transition-delay: 0.15s;
}
.sub-menu li:nth-child(4) {
  -webkit-transition-delay: 0.20s;
}
.sub-menu li:nth-child(5) {
  -webkit-transition-delay: 0.25s;
}
.sub-menu li a {
  color: #fff;
  font-family: 'Lato', Arial, Helvetica, sans-serif;
  font-size: 16px;
  width: 100%;
  display: block;
  float: left;
  line-height: 40px;
}

.oppenned .sub-menu {
  opacity: 1;
  height: 400px;
  width: 400px;
}
.oppenned span:nth-child(2) {
  overflow: visible;
}
.oppenned span:nth-child(1), .oppenned span:nth-child(3) {
  z-index: 100;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}
.oppenned span:nth-child(1) {
  -webkit-transform: rotate(45deg) translateY(12px) translateX(12px);
          transform: rotate(45deg) translateY(12px) translateX(12px);
}
.oppenned span:nth-child(2) {
	height: 400px;
	width: 400px;
	right: -160px;
	top: -160px;
	border-radius: 50%;
	background-color: rgba(108,68,10,0.54);
}
.oppenned span:nth-child(3) {
  -webkit-transform: rotate(-45deg) translateY(-10px) translateX(10px);
          transform: rotate(-45deg) translateY(-10px) translateX(10px);
}
.oppenned li {
  margin-right: 168px;
}

.button {
	display: block;
	float: left;
	clear: both;
	padding: 20px 40px;
	background: #fff;
	border-radius: 3px;
	border: 2px solid #EA6810;
	overflow: hidden;
	position: relative;
}
.button:after {
	-webkit-transition: -webkit-transform 0.3s ease;
	transition: -webkit-transform 0.3s ease;
	transition: transform 0.3s ease;
	transition: transform 0.3s ease, -webkit-transform 0.3s ease;
	content: "";
	position: absolute;
	height: 200px;
	width: 400px;
	-webkit-transform: rotate(45deg) translateX(-540px) translateY(-100px);
	transform: rotate(45deg) translateX(-540px) translateY(-100px);
	background: #10a1ea;
	z-index: 1;
	border-color: #EA6810;
}
.button:before {
  -webkit-transition: -webkit-transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transition: -webkit-transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55), -webkit-transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  content: attr(title);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  z-index: 2;
  text-align: center;
  padding: 20px 40px;
  -webkit-transform: translateY(200px);
          transform: translateY(200px);
}
.button:hover {
  text-decoration: none;
}
.button:hover:after {
  -webkit-transform: translateX(-300px) translateY(-100px);
          transform: translateX(-300px) translateY(-100px);
}
.button:hover:before {
  -webkit-transform: translateY(0);
          transform: translateY(0);
}