.btn.btn-success.btn-block {
    color: #ffffff;
    background-color: #4c94d0;
    background-image: linear-gradient(to bottom, #4c94d0, #4c94d0);
    border-color: #4c94d0 #4c94d0 #4c94d0;
}
.btn.btn-success.btn-block:hover {
    color: #ffffff;
    background-color: #4c94d0;
    background-image: linear-gradient(to bottom, #4c94d0, #4c94d0);
    border-color: #4c94d0 #4c94d0 #4c94d0;
}