html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100vh;
}

input {
  border: 0;
}

.login-box {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 100%;
  background: linear-gradient(to left bottom ,#409eff,#99aefd );
}



.login-container {
  position: absolute;
  top: 180px;
  left: 54%;
  border-radius: 10px;
  box-shadow: 0 0 10px rgb(236, 236, 236);
  width: 400px;
  height: 340px;
  background-color: #fff;
}

.login-img {
  width: 80px;
  height: 80px;
  margin: 10px 160px;
  border-radius: 50%;
  background-color: #fff;
}


.login-title {
  height: 40px;
  text-align: center;
  font-size: 21px;
  color: #666;
  font-weight: 500;
  line-height: 40px;
}

.login-user-name,
.login-user-password {
  box-sizing: border-box;
  padding: 15px 40px;
  font-size: 18px;
  font-weight: 500;
  color: #666;
}

input {
  /* display: inline-block;
  width: 70%;
  height: 30px;
  border: .5px solid #999; */
  width: 70%;
  border: 1px solid #ccc;
  padding: 7px 0px;
  border-radius: 3px;
  padding-left: 5px;
  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
  -webkit-transition: border-color ease-in-out .15s,
    -webkit-box-shadow ease-in-out .15s;
  -o-transition: border-color ease-in-out .15s,
    box-shadow ease-in-out .15s;
  transition: border-color ease-in-out .15s,
    box-shadow ease-in-out .15s
}

input:focus {
  border-color: #66afe9;
  outline: 0;
  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6)
}

.login-btn {
  margin-left: 25%;
  margin-top: 15px;
  width: 50%;
  height: 34px;
  border-radius: 17px;
  border: 0;
  font-size: 18px;
  font-weight: 500;
}

::-webkit-input-placeholder {
  /* WebKit, Blink, Edge */
  color: #999;
  padding: 3px 20px;
}

:-moz-placeholder {
  /* Mozilla Firefox 4 to 18 */
  color: #999;
  padding: 3px 20px;
}

::-moz-placeholder {
  /* Mozilla Firefox 19+ */
  color: #999;
  padding: 3px 20px;
}

:-ms-input-placeholder {
  /* Internet Explorer 10-11 */
  color: #999;
  padding: 3px 20px;
}