body,
html {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.big {
  background-color: #000;
  color: #fff;
  height: 50px;
  line-height: 50px;
  font-size: 20px;
  text-align: center;
  font-weight: bold;
}
.box .upbox {
  padding: 10px 15px;
  border-bottom: 1px solid #ddd;
}
.box .upbox a {
  display: block;
  width: 100%;
  height: 40px;
  line-height: 40px;
  -webkit-border-radius: 5px;
  border-radius: 5px;
  background-color: #FB882B;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  color: #fff;
  letter-spacing: 1px;
}