.doc-contain {
  color: #303133;
  padding: 54px 54px 86px 54px;
  height: calc(100vh - 140px);
  overflow-y: scroll;
}
.doc-contain .paragraph {
  margin: 20px 0;
}
.doc-contain .paragraph .example {
  border: 1px solid #e5e7eb;
  border-radius: 5px;
}
.doc-contain .paragraph .sample {
  padding: 20px 10px 20px 10px;
  border-bottom: solid 1px #e5e7eb;
}
.doc-contain .paragraph p {
  font-size: 16px;
  font-weight: 400;
}
.doc-contain .paragraph .mk {
  background-color: #DAECFF;
  border-radius: 5px;
  color: #303133;
}