.buttoncontact {
  display: inline-block;
  width: 160px; /* Defina a largura desejada aqui */
  padding: 0.60rem 1.20rem;
  border-radius: 10rem;
  color: #fff;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.15rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  z-index: 1;
  cursor: pointer;
  text-align: center;
}
.buttoncontact:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #7cb8f2;
  border-radius: 10rem;
  z-index: -2;
}
.buttoncontact:before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 100%;
  background-color: #00b300;
  transition: all 0.3s;
  border-radius: 10rem;
  z-index: -1;
}
.buttoncontact:hover {
  color: #fff;
}
.buttoncontact:hover:before {
  width: 100%;
}

a{
  text-decoration: none;
}