div.key {
    border: 1px solid #FF4916;
    display: table-cell;
    padding: 10px;
    width: 15px;
    text-align: center;
    cursor: pointer;
}

div.key.active {
    background-color: red;
    color: white;
}

div.key.spacekey {
    width: 150px;
}

input#field {
    border: 1px solid #FF4916;
    width: 100%;
    font-size: x-large;
}

div.keyrow {
    display: inline;
}

div#pattern {
    border: 1px solid #FF4916;
    font-size: x-large;
}

hr {
    border: none;
    border-top: 1px solid #FF4916;
}

input.lesson.active {
    background-color: #FF4916;
    color: white;
    cursor: pointer;
}

