body {
    margin: 25px 50px;
    font-family: Montserrat, sans-serif;
    background: #e9f0f4;
}

.wrap {
    margin: 20px auto;
    text-align: center;
}



small {
  display: block;
  color: #585858;
  font-size: 75%;
  margin-top: 25px;
}

small > a {
  color: #585858;
}

/* Código CSS del boton de fondo */

.btn-vert {
  color: #63B1D0;
  text-decoration: none;
  margin: 5px;
  -webkit-transition: 0.3s all ease;
  transition: 0.3s ease all;
  text-align: center;
}

.btn-vert:hover,
.btn-vert:focus{
  color: #FFF;
}

.btn-vert {
  font-size: 18px;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: inline-block;
  text-align: center;
  width: 270px;
  font-weight: bold;
  padding: 14px 0px;
  border: 3px solid #63B1D0;
  border-radius: 2px;
  position: relative;
  box-shadow: 0 2px 10px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.1);
}

.btn-vert:before {
  -webkit-transition: 0.5s all ease;
  transition: 0.5s all ease;
  position: absolute;
  top: 0;
  left: 50%;
  right: 50%;
  bottom: 0;
  opacity: 0;
  content: '';
  background-color: #63B1D0;
  z-index: -2;
}

.btn-vert:hover:before {
  -webkit-transition: 0.5s all ease;
  transition: 0.5s all ease;
  left: 0;
  right: 0;
  opacity: 1;
}

.btn-vert:focus:before {
  transition: 0.5s all ease;
  left: 0;
  right: 0;
  opacity: 1;
}

/* Colores */

.btn-vert-rojo {
  color: #FF0072;
  border: 3px solid #FF0072;
}

.btn-vert-rojo:before {
  background-color: #FF0072;
}

.btn-vert-verde {
  color:  #FF0072;
  border: 3px solid  #FF0072;
}

.btn-vert-verde:before {
  background-color:  #FF0072;
}

.btn-vert-naranja {
  color:  #FF0072;
  border: 3px solid  #FF0072;
}

.btn-vert-naranja:before {
  background-color:  #FF0072;
}