When I click on button, then can't change color back from black to green, when I make mistake?
#msform .action-button, #msform .buttons {
text-align:center;
width: auto;
background: #27AE60;
font-weight: bold;
font-size: 14px;
color: white;
border: 1px solid rgba(0, 0, 0, 0.2);
border-radius: 5px;
cursor: pointer;
padding: 10px 5px;
margin: 10px 5px;
-moz-box-shadow: 1px 1px 5px #000000;
-webkit-box-shadow: 1px 1px 5px #000000;
box-shadow: 1px 1px 5px #000000;
}