body {
  background: #fff;
  padding: 0;
  margin: 0;
}

ul,li {
  padding: 0;
  margin: 0;
}

a {
  display: block;
  text-decoration: none;
}

img {
  vertical-align: middle;
}

ul {
  list-style: none;
  margin: 20px auto;
  text-align: center;
}

ul li {
  background: #eee;
  display: inline-block;
  transition: ease 0.5s;
  margin-right: 20px;
  width: 150px;
  height: 50px;
  line-height: 50px;
  border-radius: 4px;
  overflow: hidden;
}

ul li:last-child {
  margin-right: 0;
}

ul li a:hover {
  background: #57B6E4;
  color:#fff;
}

ul li.curr {
  background: #57B6E4;
  color:#fff;
}
ul li.curr a {
  color:#fff;
}

ul li a {
  color:#333;
  font-size: 20px;
  display: block;
  transition: ease 0.5s;
}

.index-banner {
  width: 100%;
}

.content-img img {
  width: 100%;
}

.footer {
  width: 100%;
  text-align: center;
  font-size: 13px;
  padding: 10px;
  box-sizing: border-box;
  background: #f8f8f8;
  padding-bottom: 20px;
}
.footer p {
  margin: 0;
}
.footer p:first-child {
  margin-bottom: 5px;
}

.footer a {
  display: inline-block;
}