.btn {
    border: none;
    padding: 6px 8px;
    text-align: center;
    text-decoration: "bold";
    display: inline-block;
    font-size: 14px;
    border-radius: 6px;
}

.btn.add {
    background-color: #04AA6D;
    color: white;
}

.btn.rm {
    background-color: #be1616;
    color: white;
}

.btn.std {
    background-color: #c4c4c4;
}

.btn.delete {
    background-color:transparent;
    color:#be1616;
    font:bold;
    font-size: large;
}

input[type="button"] {
    cursor:pointer;
}

input[type="button"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}