}
 /* changes the default button colours */
.btn-primary {
    background: #009900;
    border: solid #000000 2px;
}
.btn-primary:hover {
    background: #91c98e;
    border: solid #000000 2px;
    color: #ffffff;
}

.btn {
    background: #009900;
    border: solid #000000 2px;
}
.btn:hover {
    background: #91c98e;
    border: solid #000000 2px;
    color: #ffffff;
}<br />
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