.login-btns, #login-username {
  margin-left: auto;
  margin-right: auto;
  width: 70%;
}

.login-btns button, .login-btns>div>.submit>input.btn {
  width: 100%;
}

#login-back-btn {
  margin-top: 15px;
}

i.i-id {
  font-size: 21px;
  margin: 6px 0px 0px -34px;
}

#i-id-ok {
  color: #5cb85c;
}

#i-id-ng {
  color: rgba(231, 76, 60, 0.88);
}

div.err-msg {
  display: inline-block;
}

div.err-append-msg {
  width: 300px;
  margin-left: -25px;
  margin-top: -13px;
  margin-bottom: 20px;
}

.x_content input {
  margin-bottom: 25px;
}

.x_content div.has-error input {
  margin-bottom: 5px;
  border-color: #a94442;
}

.x_content div.take-ok input {
  border-color: #5cb85c;
}

.x_content div.has-error div.err-msg {
  color: #a94442;
  margin-bottom: 15px;
}

.x_content input.form-control[readonly] {
    background-color: #e9ecef;
    opacity: 1;
}

.x_content div.has-error label.control-label {
  color: #73879C;
}

.input-group-btn {
  float: right;
  margin: -10px 52px 0px -54px;
}

#input-birthday {
  margin-top: 28px;
  margin-bottom: 23px;
}

#input-birthday > label {
  margin-bottom: 3px;
}