.container{
  width: 100%;
}
.input_style{
  width: 300px;
  height: 35px;
  margin: 0 auto;
  background: #efefef;
  border-radius: 3px;
  box-sizing: border-box;
  padding: 2px 5px;
  margin-top: 10px;
}
.tips{
  width: 300px;
  margin-bottom: 100px;
  color: #1296db;
  font-size: 14px;
  margin-top: 5px;
}
.btn_box{
  width: 300px;
  margin: 0 auto;
  background: #1296db;
  color: #ffffff;
  font-size: 14px;
  text-align: center;
  height: 35px;
  border-radius: 3px;
  line-height: 35px;
}