.small {
  font-size: 70%;
  line-height: 100%;
}

<style>
p.caption {
  font-size: 0.6em;
}
</style>


@font-face {
  font-family: 'Yanone Kaffeesatz';
  font-style: normal;
  font-weight: 400;
  src: local('Yanone Kaffeesatz Regular'), local('YanoneKaffeesatz-Regular'),
       url('https://github.com/yihui/xaringan/releases/download/v0.1/yanone-kaffeesatz.woff') format('woff');
}
@font-face {
  font-family: 'Droid Serif';
  font-style: normal;
  font-weight: 400;
  src: local('Droid Serif'), local('DroidSerif'),
       url('https://github.com/yihui/xaringan/releases/download/v0.1/droid-serif.woff') format('woff');
}
@font-face {
  font-family: 'Source Code Pro';
  font-style: normal;
  font-weight: 400;
  src: local('Source Code Pro'), local('SourceCodePro-Regular'),
       url('https://github.com/yihui/xaringan/releases/download/v0.1/source-code-pro.woff') format('woff');
}

body { font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Songti SC', serif; }
h1, h2, h3 {
  font-family: 'Yanone Kaffeesatz', 'Palatino Linotype', 'Book Antiqua', Palatino, 'STHeiti', 'SimHei', 'Microsoft YaHei';
  font-weight: normal;
}
.remark-code, .remark-inline-code { font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace; }


  .blue{
  color: #4d8dc9;
  }
}

.remark-slide-content {
  background-image: url("img/Primary logo.png");
  background-repeat: no-repeat;
  background-position: top right;
  background-size: 80px;
  padding-top: 20px;  /* 避免文字贴太近 logo */
}

/* 反色页面不显示 logo（通常用于 .inverse） */
.remark-slide-content.inverse {
  background-image: none !important;
}