body {
    font-family: Arial;
    background-color: white;
    color: black;
}

.page {
    width: 900px;
    margin: auto;
}

header {
    border: 1px solid black;
    padding: 10px;
}

nav {
    margin-top: 10px;
    margin-bottom: 10px;
}

nav form {
    display: inline;
}

.ligne_categories form {
    display: inline;
}

main {
    border: 1px solid black;
    padding: 10px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th {
    border: 1px solid black;
    padding: 5px;
    width: 170px;
}

td {
    border: 1px solid black;
    padding: 5px;
}

input,
select,
button {
    margin: 2px;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
    width: 95%;
}

.ok {
    border: 1px solid black;
    padding: 5px;
}

.info {
    border: 1px solid black;
    padding: 5px;
}

footer {
    margin-top: 10px;
    border: 1px solid black;
    padding: 5px;
}