.btn {
    display: inline-block;
    height: 38px;
    line-height: 38px;
    padding: 0 18px;
    background-color: rgba(0, 150, 136, 1);
    color: #fff;
    white-space: nowrap;
    text-align: center;
    font-size: 14px;
    border: none;
    border-radius: 2px;
    cursor: pointer;
}
.btn:disabled {
    background-color: rgba(0, 150, 136, 0.4);
    cursor: not-allowed;
}