Замените
.button {...}
на
.button {
width: 250px;
height: 26px;
border: 1px solid #0a3c59;
background: #3e779d;
background: -webkit-gradient(linear, left top, left bottom, from(#65a9d7), to(#3e779d));
background: -webkit-linear-gradient(top, #65a9d7, #3e779d);
background: -moz-linear-gradient(top, #65a9d7, #3e779d);
background: -ms-linear-gradient(top, #65a9d7, #3e779d);
background: -o-linear-gradient(top, #65a9d7, #3e779d);
background-image: -ms-linear-gradient(top, #65a9d7 0%, #3e779d 100%);
/*padding: 12px 24px;*/
-webkit-border-radius: 6px;
-moz-border-radius: 6px;
border-radius: 6px;
-webkit-box-shadow: rgba(255,255,255,0.4) 0 1px 0, inset rgba(255,255,255,0.4) 0 1px 0;
-moz-box-shadow: rgba(255,255,255,0.4) 0 1px 0, inset rgba(255,255,255,0.4) 0 1px 0;
box-shadow: rgba(255,255,255,0.4) 0 1px 0, inset rgba(255,255,255,0.4) 0 1px 0;
text-shadow: #7ea4bd 0 1px 0;
color: #eff1f2;
font-size: 17px;
font-family: helvetica, serif;
text-decoration: none;
vertical-align: middle;
}