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

body {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  background: #FFE8A3;
  font-family: 'Montserrat', sans-serif;
}

html, body {
  height: 100%;
}

button {
  border: 5px solid transparent;
  background: #AED6D1;
  color: #55706D;
  border-radius: 40px;
  padding: 15px 30px;
  overflow: hidden;
  width: 200px;
  -webkit-transition: all        1.2s, border     0.5s 1.2s, -webkit-box-shadow 0.3s 1.5s;
  transition: all        1.2s, border     0.5s 1.2s, -webkit-box-shadow 0.3s 1.5s;
  transition: all        1.2s, border     0.5s 1.2s, box-shadow 0.3s 1.5s;
  transition: all        1.2s, border     0.5s 1.2s, box-shadow 0.3s 1.5s, -webkit-box-shadow 0.3s 1.5s;
  white-space: nowrap;
  text-indent: 23px;
  font-weight: bold;
}
button span {
  display: inline-block;
  -webkit-transform: translateX(300px);
          transform: translateX(300px);
  font-weight: normal;
  opacity: 0;
  -webkit-transition: opacity 0.1s 0.5s, -webkit-transform 0.4s 0.5s;
  transition: opacity 0.1s 0.5s, -webkit-transform 0.4s 0.5s;
  transition: opacity 0.1s 0.5s, transform 0.4s 0.5s;
  transition: opacity 0.1s 0.5s, transform 0.4s 0.5s, -webkit-transform 0.4s 0.5s;
}
button:hover {
  text-indent: 0;
  background: #55706D;
  color: #FFE8A3;
  width: 250px;
  border: 10px solid #8DCCC4;
  -webkit-box-shadow: 3px 3px 2px rgba(0, 0, 0, 0.15);
          box-shadow: 3px 3px 2px rgba(0, 0, 0, 0.15);
}
button:hover span {
  -webkit-transform: translateX(0);
          transform: translateX(0);
  opacity: 1;
}