img[src*="#center"] {
    display: block;
    margin: 0 auto;
}

.seotext {
    border-bottom:solid;
    border-color:lightgreen;
    border-width:5px;/*5ピクセルの太さにする*/
    font-weight: bold;
}

.box {
    border: #4e7bcc 1px solid; /*境界線の指定*/
    padding:10px;
}

.seotext02 {
    border-bottom:solid;
    border-color:red;
    border-width:5px;/*5ピクセルの太さにする*/
    font-weight: bold;
}

.through {
    text-decoration:line-through ;
}

.back {
    background-color: lightcyan;
    border: #4e7bcc 1px solid; /*境界線の指定*/
    padding:10px;
    margin: 1rem 0;
}

.bbox {
    background-color: #0000ff33;
    border: #4e7bcc 1px solid; /*境界線の指定*/
    padding:10px;
    margin: 1rem 0;
}

.rbox {
    background-color: #ff000033;
    border: #4e7bcc 1px solid; /*境界線の指定*/
    padding:10px;
    margin: 1rem 0;
}

.sans-serif-title {
    font-family: sans-serif;
    font-size: 10pt;
}

.serif-title {
    font-family: serif;
    font-size: 10pt;
}

.serif-chara {
    font-family: serif;
    font-size: 9pt;
}

.summary {
    font-family: sans-serif;
    font-size: 30pt;
    color: red;
}

.before-summary{
    font-size: 15pt;
}