.disable { pointer-events: none; opacity: 0.5 }
.clickable { cursor: pointer; }

button {
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    padding-left: 1em; padding-right: 1em;
    padding-top: 0.5em; padding-bottom: 0.5em;
}

input {
    height: 30px;
    padding-left: 0.5em;
    padding-right: 0.5em;
}

select {
    height: 30px;
    min-width: 60px;
}