html {
    font-size: 62.5%;
}

h1 {
    text-align: center;
    font-size: 40px;
    font-size: 4.0rem;
}

.line {
    height: 25vh;
    width: 90%;
    margin: 0 auto;
    clear: both;
}

.title {
    display: block;
    float: left;
    height: 100%;
    text-align: center;
}

.title.board {
    width: 10%;
}

.title.middle {
    width: 70%;
}

.line a.case, .bauer {
    display: block;
    float: left;
    width: 30%;
    height: 100%;
    border: 1px solid #000000;
    text-align: center;
    text-decoration: none;
}

.x {
    background: no-repeat url("X.png") center center;
}
.o {
    background: no-repeat url("O.png") center center;
}

.clear {
    display: block;
    float: left;
    height: 100%;
    border: 1px solid #FFFFFF;
}

.clear.variant {
    width: 50%;
    font-size: 40px;
    font-size: 4.0rem;
}

.clear.variant a, 
.clear.variant span {
    text-decoration: none;
    margin-left: 10px;
    margin-left: 1.0rem;
}

.clear.space {
    width: 10%;
}

.clear.link {
    width: 30%;
    background: #EEDD00;
    text-align: center;
    text-decoration: none;
    font-size: 30px;
    font-size: 3.0rem;
    padding-top: 7px;
}

.line.link {
    margin-top: 10px;
    height: 4vh;
}

.line.top {
    height: 10vh;
}

input, select, option {
    font-size: 30px;
    font-size: 3.0rem;
    margin-top: 20px;
    margin-top: 2.0rem;
}