/* ===== ALAP LAYOUT ===== */

.container { width: 100%; }
nav { float: left; width: 220px; }
article { margin-left: 240px; padding: 1em; }

.mainmenu, .submenu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.submenu { display: none; }

/* ===== MENÜ STRUKTÚRA ===== */

.mainmenu a,
.submenu a {
    display: block;
    padding: 10px;
    text-decoration: none;
    font-weight: 600;
}

/* ===== TÁBLÁZATOK ===== */
table {
    margin: 1em auto;
    border-collapse: collapse;
    border-spacing: 0;
    width: auto;
}

table th,
table td {
    border: 1px solid currentColor;
    padding: 6px 10px;
    text-align: center;
}

table th {
    font-weight: bold;
}

/* ===== TARTALOM ===== */

problemhead { display: block; font-style: italic; }
problembody { display: block; text-align: justify; }