@import url("https://fonts.googleapis.com/css?family=Raleway:400,700");
*,
*:before,
*:after {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  font-family: "Raleway", sans-serif;
}

.container {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.container:hover .top:before, .container:hover .top:after,
.container:hover .bottom:before,
.container:hover .bottom:after, .container:active .top:before, .container:active .top:after,
.container:active .bottom:before,
.container:active .bottom:after {
  margin-left: 200px;
  transform-origin: -200px 50%;
  transition-delay: 0s;
}
.container:hover .center, .container:active .center {
  opacity: 1;
  transition-delay: 0.2s;
}

.top:before, .top:after,
.bottom:before,
.bottom:after {
  content: "";
  display: block;
  position: absolute;
  width: 200vmax;
  height: 200vmax;
  top: 50%;
  left: 50%;
  margin-top: -100vmax;
  transform-origin: 0 50%;
  transition: all 0.5s cubic-bezier(0.445, 0.05, 0, 1);
  z-index: 10;
  opacity: 0.65;
  transition-delay: 0.2s;
}

.top:before {
  transform: rotate(45deg);
  background: #e46569;
}
.top:after {
  transform: rotate(135deg);
  background: #ecaf81;
}

.bottom:before {
  transform: rotate(-45deg);
  background: #60b8d4;
}
.bottom:after {
  transform: rotate(-135deg);
  background: #3745b5;
}

.center {
  position: absolute;
  width: 400px;
  height: 400px;
  top: 50%;
  left: 50%;
  margin-left: -200px;
  margin-top: -200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 30px;
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.445, 0.05, 0, 1);
  transition-delay: 0s;
  color: #333;
}
.center input {
  width: 100%;
  padding: 15px;
  margin: 5px;
  border-radius: 1px;
  border: 1px solid #ccc;
  font-family: inherit;
}

.button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
}


.example_f {
   border-radius: 4px;
   background: linear-gradient(to right, #67b26b, #4ca2cb) !important;
   border: none;
   color: #FFFFFF;
   text-align: center;
   text-transform: uppercase;
   font-size: 18px;
   padding: 13px;
   width: 200px;
   transition: all 0.4s;
   cursor: pointer;
   margin: 5px;
 }
 .example_f span {
   cursor: pointer;
   display: inline-block;
   position: relative;
   transition: 0.4s;
 }
 .example_f span:after {
   content: '\00bb';
   position: absolute;
   opacity: 0;
   top: 0;
   right: -20px;
   transition: 0.5s;
 }
 .example_f:hover span {
   padding-right: 25px;
 }
 .example_f:hover span:after {
   opacity: 1;
   right: 0;
 }

 .link{
    text-decoration :none;
 }