.fixed-menu{
  position: fixed;
  text-align: center;
  font-size: 14px;
  top: 70px;
  left: 50%;
  margin-left: 750px;
}
.fixed-menu li{
  margin-bottom: 10px;
}


section{
  width: 1280px;
  margin: auto;
  padding-top: 100px;
}
section .search{
  width: 490px;
  height: 54px;
  margin:50px auto;
  background-color: #ddd;
  position: relative;
}
section .search input{
  width: 440px;
  font-size: 20px;
  border: none;
  background-color: #ddd;
  position: absolute;
  top: 25%;
  left: 13px;
}
section .search button{
  position: absolute;
  border: none;
  background-color: #ddd;
  top: 25%;
  right: 13px;
}
section .txt{
  width: 1280px;
  height: 300px;
  margin: auto;
  text-align: center;
  border-top: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
  
}
section .txt > p{
  line-height: 200px;
  font-size: 25px;  
}