<a class="btnAzul" href="#">Cick aqui</a>

a.btnAzul{ 
  display: block; 
  width: 250px; 
  height: 60px; 
  padding: 25px 0 0 0; 
  margin: 0 auto; 
  background: #4682B4; 
  background: -moz-linear-gradient(top, #87CEEB 0%, #4682B4 100%); 
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#87CEEB), color-stop(100%,#4682B4)); 
  box-shadow: inset 0px 0px 6px #fff; 
  -webkit-box-shadow: inset 0px 0px 6px #fff;
  border: 1px solid #62C2F9; 
  border-radius: 10px; 
  font: bold 25px Helvetica, Sans-Serif; 
  text-align: center; 
  text-transform: uppercase; 
  text-decoration: none; 
  color: #3090C7; 
  text-shadow: 0px 1px 2px #62C2F9; 
}