div.content{
  height: 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
div.content div{
  margin: 50px 30px;
}
div.content .title{
  font-size: 20px;
  margin:20px 0;
  text-align:center;
  line-height: 2rem;
}
div.content .link{
  line-height: 2rem;
  font-size: 18px;
  padding:15px 10px;
  border: solid 1px #3051af;
  margin: 30px 0;
}
div.content .link a{
  display:block;
  margin-left: 40px;
}
div.content .mark:before{
  content:"";
  display:inline-block;
  width: 14px;
  height: 14px;
  background-color: #275aeb;
  margin: 0 10px;
}