html, body {
  height: 100%; }

body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
  text-align: center; }

.form-block {
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: auto; }
  .form-block img {
    max-width: 100%;
    margin-bottom: 1.5rem; }
  .form-block .form-control {
    position: relative;
    box-sizing: border-box;
    height: auto;
    padding: 10px;
    font-size: 16px; }
    .form-block .form-control:focus {
      z-index: 2; }
  .form-block button {
    margin-top: 10px; }
  .form-block.signin input:first-of-type, .form-block.chpass input:first-of-type {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0; }
  .form-block.signin input:last-of-type, .form-block.chpass input:last-of-type {
    border-top-left-radius: 0;
    border-top-right-radius: 0; }

.brief {
  width: 100%;
  max-width: 576px;
  padding: 15px;
  margin: auto; }
  .brief img {
    max-width: 330px;
    margin-bottom: 1.5rem; }