.login-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  background-size: 100%;
}
.ms-logo {
  width: 100%;
  text-align: center;
  margin-top: 30px;
}
.ms-title {
  width: 100%;
  line-height: 50px;
  text-align: center;
  font-size: 25px;
  margin-top: 10px;
  color: #2e55b3;
}
.ms-login {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 480px;
  margin: -260px 0 0 -265px;
  border-radius: 5px;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 0 3px #409eff;
  text-align: center;
  font-family: '微软雅黑';
}
.ms-content {
  padding: 30px 30px;
}
.login-btn {
  text-align: center;
}
.login-btn button {
  width: 100%;
  height: 36px;
  margin-bottom: 10px;
}
.login-tips {
  font-size: 12px;
  line-height: 30px;
  color: #fff;
}
.box {
  display: flex;
  justify-content: space-between;
}