body{
  margin:0;
  padding: 0;
  background:#f0f0ff;
}
.container{
  height:100%;
  width:100%;
  position:absolute;
}
.top{
  height:300px;
  width:300px;
  position: relative;
  left:50%;
  top:50%;
  margin-left:-150px;
  margin-top: -150px;
  box-shadow:0 0 2px 2px rgba(120,120,120,0.1);
  background: #fff;
}

.top form{
  padding-top: 30px;
}

input{
  margin-left: -100px;
  display: inline-block;
  border:none;
  height:40px;
  width:200px;
  position: relative;
  left:50%;
  outline:none;
  background-color: #fff;
  border-bottom:2px solid #5689f0;
}
.btn{
  width: 200px;
  height:34px;
  border:none;
  outline:none;
  border-radius: 3px;
  background-color: #4069e0;
  font-size:16px;
  color: #fff;
  text-align:center;
  line-height: 34px;
  position: relative;
  left:50%;
  margin-left: -100px;
  margin-top: 38px;
  cursor: pointer;
}

.sign{
  width: 200px;
  height:34px;
  border:none;
  outline:none;
  border-radius: 3px;
  font-size:16px;
  color: #4069e0;
  text-align:center;
  border:2px solid #4069e0;
  line-height: 34px;
  position: relative;
  left:50%;
  margin-left: -100px;
  cursor: pointer;
  margin-top: 20px;
}
.au{
    margin-left: -100px;
    display: inline-block;
    border:none;
    height:40px;
    width:200px;
    position: relative;
    left:50%;
    outline:none;
    background-color: #fff;
    border-bottom:2px solid #5689f0;
}
.auth{
    width:100px;
    border:none;
    height:38px;
    display: inline-block;
}
.buttom{
  width: 200px;
  position:absolute;
  left:50%;
  bottom: 20px;
  margin-left: -100px;
}
.getauth{
    position: absolute;
    right: 0;
    height:28px;
    width:60px;
    background: 80px;
    border-radius: 2px;
    background: #4567f0;
    color:#fff;
    font-size: 12px;
    margin-top: 6px;
    line-height: 28px;
    text-decoration:none;
    text-align: center;
}
p{
  width: 200px;
  margin: 0 auto;
  display:inline-block;
  font-size:12px;
  color:#aaa;
  height:14px;
  margin: 0;
  text-align: center;
}