label {
    margin-right: 4px;
}

form {
	border: 1px DarkSlateGrey dotted;
    padding: 10px;
    padding-left: 25px;
}

input[type="text"] {
    margin-left: .25em;
	width: 75%;
	max-width: 50em;
    font-family: FiraMono, monospace;
}

.theorem {
    font-family: FiraMono, monospace;
}

.valid {
    background-color: #aed975;
}

.invalid {
    background-color: #ff7c7b;
}

.error {
    background-color: #c4c4c4;
}

.validity {
    font-weight: bold;
}

button {
    margin-right: 10px;
}