* {
  padding: 0;
  margin: 0;
  text-decoration: none;
  list-style: none;
  box-sizing: border-box;
}

body {
  font-family: "Microsoft YaHei UI";
  width: 1535px;
  height: 745px;
}

/*一级标签*/
.header {
  width: 100%;
  height: 14%;
}
.navigation {
  background: #0082e6;
  width: 100%;
  height: 100%;
}
.main {
  width: 100%;
  height: 86%;
  float: left;

  /* 网络自适应设置 */
  display: flex;
}

.setting {
  float: left;
  background: rgb(255, 255, 255);
  width: 20%;
  height: 100%;
  padding: 5px 10px 5px 10px;
}

.content {
  float: left;
  display: block;
  margin: 0 auto;
  /*background: #7d8fa3;*/
  background: #ffffff;
  border-left: 10px solid whitesmoke;
  width: 80%;
  height: 100%;
}