input{
    width: 300px; height: 30px;
}
button{
    width: 75px; height: 25px;
}
pre{
    font-family: 'ヒラギノ角ゴ ProN', 'Meiryo UI', 'MS Pゴシック', sans-serif;
    font-size: 1.2em;  line-height: 1.5em; white-space: pre;
}
.match{
    background-color: yellow;
}
.selected{
    background-color: orangered;
}