.bt {
border: 1px solid #25692a;
border-radius: 4px;
display: inline-block;
cursor: pointer;
font-family: Verdana;
font-weight: bold;
font-size: 15px;
padding: 10px 16px;
text-decoration: none;
}
.bt-az {
border-color: #46a7f5;
background: linear-gradient(to bottom, #86c6f8 5%, #46a7f5 100%);
box-shadow: inset 0px 1px 0px 0px #d7ecfd;
color: #fff;
text-shadow: 0px 1px 0px #528009;
}
.bt-az:hover {
background: linear-gradient(to bottom, #46a7f5 5%, #86c6f8 100%);
}
.bt:active {
position: relative;
top: 2px;
}
Fonte: TST
Certificados e Diplomas – Ministro José Luciano de Castilho Pereira