.knob-buttons input[type="submit"] {
  background-color: #3366BB;
  filter: progid:DXImageTransform.Microsoft.gradient(gradientType=0, startColorstr='#FF4779CD', endColorstr='#FF3366BB');
  background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #4779cd), color-stop(100%, #3366bb));
  background-image: -webkit-linear-gradient(top, #4779cd, #3366bb);
  background-image: -moz-linear-gradient(top, #4779cd, #3366bb);
  background-image: -o-linear-gradient(top, #4779cd, #3366bb);
  background-image: linear-gradient(top, #4779cd, #3366bb);
  border-radius: 3px 3px 3px 3px;
  border: 1px solid #3162B3;
  color: #FFFFFF;
  cursor: pointer;
  display: inline-block;
  font-weight: bold;
  padding: 0.2em 0.8em;
  text-align: center;
  text-shadow: 0px 1px 1px rgba(51, 102, 187, 0.75);
  vertical-align: middle;
}

.knob-buttons input[type="submit"]:hover {
  background-color: #4779cd;
  *background-color: #4779cd;
  *zoom: 1;
  filter: progid:DXImageTransform.Microsoft.gradient(gradientType=0, startColorstr='#FF5B88D2', endColorstr='#FF4779CD');
  background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #5b88d2), color-stop(100%, #4779cd));
  background-image: -webkit-linear-gradient(top, #5b88d2, #4779cd);
  background-image: -moz-linear-gradient(top, #5b88d2, #4779cd);
  background-image: -o-linear-gradient(top, #5b88d2, #4779cd);
  background-image: linear-gradient(top, #5b88d2, #4779cd);
  text-decoration: none;
}

.knob-buttons input[type="submit"]:active {
  background-image: none;
  background-color: #305faf;
  text-shadow: none;
}