* {
  margin: 0;
  padding: 0;}

html {
  background-color: rgb(235, 233, 233);}

body {
  min-width: 1300px;}

header {
  width: 100%;
  min-width: 1024px;
  height: 250px;
  /* background-color: rgb(204, 1, 1); */
  background-image: url(../images/dingtu.jpg);
  background-size: 100% 100%;}

header > span {
  display: inline-block;
  margin-left: 80px;
  transform: translateY(-45px);
  font-size: 48px;
  font-weight: 800;
  text-align: center;
  color: rgb(228, 225, 77);}
header  span {
  display: inline-block;
  margin-left: 80px;
  transform: translateY(-45px);
  font-size: 48px;
  font-weight: 800;
  text-align: center;
  color: rgb(228, 225, 77);}

#emblem {
  width: 100px;
  height: 100px;
  margin-left: 20%;
  margin-top: 110px;
  transform: translateY(-50%);}

nav {
  width: 100%;
  height: 50px;
  background-color: rgb(181 0 0);}

nav ul {
  width: 980px;
  height: 100%;
  list-style: none;
  text-align: center;
  line-height: 50px;
  font-size: 20px;
  margin: 0 auto;}

nav ul li {
  float: left;
  height: 100%;
  color: rgb(248, 243, 243);
  display: block;}

nav ul li:hover {
  background-color: rgb(240, 238, 238);
  color: black;}

nav ul li a {
  width: 100%;
  height: 100%;
  padding: 0 20px;
  color: inherit;
  box-sizing: border-box;
  text-decoration: none;
  display: block;}