.mt-5 {
  margin-top: 5px; }

.ml-10 {
  margin-left: 10px; }

section.intro {
  margin: 170px auto 50px; }

section.main-banner {
  padding-top: 36%;
  background-image: url(../images/banner-cattien.jpg);
  position: relative; }
  section.main-banner .fb-logo {
    display: inline-block; }
    section.main-banner .fb-logo ~ a {
      color: #0057c5; }
    section.main-banner .fb-logo img {
      padding-top: 10px;
      display: block;
      width: 22px;
      height: 22px;
      margin-bottom: -3px; }
  section.main-banner p.new-text {
    font-size: 20px;
    padding: 7px 0; }
    section.main-banner p.new-text a {
      text-decoration: none; }
  section.main-banner .new-button {
    width: 90%;
    max-width: 670px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%); }
    section.main-banner .new-button span {
      display: block;
      font-size: 30px;
      line-height: 38px;
      color: white;
      text-shadow: 0 0 13px #000; }
    section.main-banner .new-button a {
      background: #d03f41;
      color: white;
      width: 160px;
      display: block;
      font-size: 15px;
      height: 40px;
      line-height: 38px;
      margin: 20px auto;
      cursor: pointer;
      text-decoration: none; }
      section.main-banner .new-button a:hover {
        background: #c3383a; }

section.course-info .title-date {
  margin: 20px auto 50px; }

section.course-info .calendar-cattien li {
  list-style: none; }
  section.course-info .calendar-cattien li img {
    width: 100%;
    max-width: 480px; }

section.course-info .course-content p a.btn-here {
  text-decoration: none;
  color: #000;
  background: #ffe963;
  padding: 2px 9px 4px;
  border-radius: 16px;
  -webkit-transition: all .2s;
  -o-transition: all .2s;
  transition: all .2s; }
  section.course-info .course-content p a.btn-here:hover {
    background: #fff779; }

section.announcement p {
  font-size: 14px;
  margin: 15px 0 20px;
  color: #212121;
  background: #f9f9f9;
  padding: 12px 10px 15px; }
  section.announcement p u {
    color: #e63d3f; }

footer a:first-child {
  margin-top: 0; }

@media (max-width: 640px) {
  section.main-banner p {
    margin-bottom: 0;
    font-size: 17px;
    line-height: 20px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box; }
    section.main-banner p.new-text {
      font-size: 14px;
      padding: 0 5px; }
      section.main-banner p.new-text ~ p {
        font-size: 16px;
        line-height: 22px; }
  section.main-banner .new-button span {
    font-size: 18px;
    line-height: 20px; }
  section.main-banner .new-button a {
    width: 125px;
    font-size: 13px;
    height: 35px;
    line-height: 33px;
    margin: 10px auto; }
  .new-figure2 img {
    width: 100%;
    margin-left: 0; }
  section.intro {
    margin: 200px auto 50px; }
  section.announcement p {
    margin: 0 15px 25px; }
  .calendar-cattien ul {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap; }
    .calendar-cattien ul li {
      margin-left: 0;
      margin-bottom: 10px; } }