body {
    position: absolute;
    margin: 0;
}

header {
    margin: 0;
}

h2, h3 {
    text-align: center;
}
p {
    margin: 0;
}


table, th, td {
    border: 0.1rem solid #666666;
    border-collapse: collapse;
}
table {
    width: 100%;
}
th, td {
    text-align: center;
    align-items: center;
}
tr {
    height: 3em;
}
.t-head {
    height: 2em;
}
.number {
    width: 2em;
}
.time {
    width: 10em;
}
.day {
    width: 20em;
}
.optional {
    color: #888888;
}
td a {
    display: inline-flex;
    height: 2.5rem;
    width: 98.5%;
    font-family: inherit;
    justify-content: center;
    align-items: center;
    border-width: 2px;
    margin: 0;
    padding: 0;
}
td a:hover {
    border-color: #a008d2;
}
td a[href="."] {
    color: inherit;
}
td a[href="."]:hover {
    border-color: #222222;
    cursor: inherit;
}
td.eng div {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}
td.eng div p {
    grid-column: 1 / 4;
    width: 100%;
}
td.eng div a {
    height: min-content;
    width: 95%;
}
td.alg a, td.rus a {
    display: inline;
}


#switch-button {
    width: 8rem;
    height: 3rem;
}

.boards {
    margin-top: 5rem;
}
.boards .buttons {
    display: flex;
    flex-direction: row;
    justify-content: center;
}
.boards .buttons button {
    width: 6rem;
    height: 2.5rem;
    margin: 0 0.3rem;
}


@media (max-width: 800px) {
    td a {
        height: 5rem;
    }
}