.content {
    font-family: "汉仪旗黑50S","HYQiHei-50s";
    font-size: 1em;
    text-indent: 2em;
    text-align: justify;
}

.frontCover {
    qrfullpage: 1;
}

body {
    font-size: 1em;
    text-align: justify;
    line-height: 1.618em;
}

p {
    text-indent: 2em;
}

p.kindle-cn-copyright-text {
    line-height: 1.618em;
    text-indent: 0em;
}

:lang(ja) {
    font-family: TBGothic, TBMincho, TBGothic, HYGothic, TsukushiMincho;
}

img.kindle-cn-inline-character {
    width: 1em;
    vertical-align: middle;
}

p.kindle-cn-kai {
    font-family: STKai, "MKai PRC", Kai, "楷体";
}

 
h1.preface-title-c {
    font-size: 1.8em;
    font-weight: bold;
    line-height: 1.2em;
    margin-top: 100px;
    text-align: center;
}

h1.chapter-c {
    font-size: 2em;
    line-height: 1.2em;
    font-weight: normal;
    text-align: center;
    margin-top: 100px;
    font-weight: bold;
}

h1.title-1 {
    font-size: 1.8em;
    line-height: 1.2em;
    font-weight: bold;
    margin-top: 100px;
    text-align: justify;
}

h2.title-2-c {
    font-size: 1.5em;
    line-height: 1.2em;
    font-weight: bold;
    text-align: center;
}

h3.title-3 {
    font-size: 1.3em;
    line-height: 1.2em;
    font-weight: bold;
    text-align: justify;
}

div.kindle-cn-frame-zhishidian1 {
    font-size: 1em;
    padding: 0.5em;
    margin: 1.5em 0em 1.5em 0em;
    background-color: #b2b2b2;
}

span.kindle-cn-bold {
    font-weight: bold;
}

span.kindle-cn-italic {
    font-style: italic;
}

span.math-super {
    font-size: 0.7em;
    vertical-align: super;
}

}
p.kindle-cn-para-right-rk {
    text-align: right;
    font-family: STKai, "MKai PRC", Kai, "楷体";
}

p.kindle-cn-para-center-d {
    text-align: center;
    font-size: 1.2em;
    text-indent: 0em;
    font-family: STKai, "MKai PRC", Kai, "楷体";
}

span.kaiti {
    font-family: STKai, "MKai PRC", Kai, "楷体";
}

span.kindle-cn-Russian {
    font-family: "MYing Hei S", Hei;
}