style.css

@font-face {
  font-family: "Chinese Quotes";
  src: local('PingFang SC'), local("Microsoft Yahei");
  unicode-range: U+2018-2019, U+201C-201D;
}

.text-figures {
  font-variant-numeric: oldstyle-nums;
}

.small-caps {
  font-variant-caps: all-small-caps;
  letter-spacing: .015em;
}

.all-caps {
  text-transform: uppercase;
  letter-spacing: .03em;
}

body {
  margin: 0;
  padding: 0;
  line-height: 1.2;
  font-family: 'Chinese Quotes', 'SF Pro', 'Segoe UI', 'PingFang SC', 'Microsoft Yahei', sans-serif;
  font-weight: 400;
  font-size: 20px;
}

/* header */
header{
  width: 600px;
  min-width: 60%;
  max-width: 80%;
  margin: auto;
  padding-top: 15px;
}
.title-wrapper{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-divider{
  height:1.2px;
  border:none;
  background:black;
  margin-top: 12px;
  margin-bottom: 12px;
}
.header-title{
  font-family: 'Segoe UI';
}
.header-title:hover{
  text-decoration: none;
}
.header-link{
  float: right;
}
.header-link:hover{
  text-decoration: none;
}

/* main */
main{
  width: 600px;
  min-width: 60%;
  max-width: 80%;
  margin: auto;
  padding-bottom: 20px;
}

/* hyperlink */
a{
  text-decoration: none;
  color: black;
}
a:hover{
  text-decoration: underline;
}

/* description */
.description {
  margin-top: 15px;
  text-align: center;
  color: #888888;
}

/* module */
/* .module{
  margin-bottom: 6px;
} */
.module-title{
  /* font-style: italic; */
  margin-bottom: 6px;
}
/* .module-box:nth-child(even){
  background-color: #f3f3f3;
  border-top: 1px solid #cccccc;
  border-bottom: 1px solid #cccccc;
}
.module-box:last-child{
  border-bottom: 1px solid #cccccc;
} */
.module-box{
  /* padding-top: 6px; */
  padding-bottom: 12px;
}
.module-numbering{
  position: absolute;
  width: 20px;
  margin-left: -24px;
}
.module-hyperlink{
  display: inline-block;
  width: 100%;
}
.module-description{
  font-size: 18px;
  color: #888888;
}