<div id="container"><a class="btn" href="http://www.htmllion.com/css3-linear-gradients-tool.html">
Generador</a></div>

<style><!--
a.btn {
display: block; width: 250px; height: 60px; padding: 40px 0 0 0; margin: 0 auto;

background: #98C2FA; /* old browsers */
background: -moz-linear-gradient(top, ##a9e6f5 0%, #6faee8 100%); /* firefox */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#e6a3e3), color-stop(100%,#6faee8)); /* webkit */

box-shadow: inset 0px 0px 6px #fff;
-webkit-box-shadow: inset 0px 0px 6px #fff;
border: 1px solid #5ea617;
border-radius: 10px;
}
--></style>