header {
  padding: 154px 0 100px;
}

@media all and (max-width: 480px) {
  header {
    padding: 0px 0 0px;
  }
}

section {
  padding: 100px 0px;
}

@media all and (max-width: 480px) {
  section {
    padding: 0px 0;
  }
}

#about {
  background: url("../images/cbt_image.jpg") no-repeat center center fixed;
  background-size: 100% auto;
  padding: 100px 0px 30px 0px
}

#about .row {
  background-color: rgba(244,244,244,.9);
  padding: 10px;
  margin-left: 10px;
}

@media all and (max-width: 480px) {
  #about {
    padding: 100px 0px 0px 0px;
    background-image: none;
  }
}

@media (min-width: 480px) and (max-width: 706px) {
  #about {
    padding: 100px 20px 0px 20px;
    background-image: none;
    background-color: white;
  }
}

.about_logo {
  width: 70%;
  height: 70%;
  margin-bottom: 20px;
}


@media all and (max-width: 480px) {
  .about_logo {

  }
}

@media all and (max-width: 480px) {
  .member {
    width: 100%;
    margin-left: auto;
    height: auto;
    margin-right: auto;
  }
  .member img {
    width: 50%;
    height: auto;
  }
}

.member_img {
  width: 200px;
  height: 200px;
}

#nav_img {
  width: 100px;
  height: auto;
}

/* FACEBOOK */
.fab {
    padding: 20px;
    width: 50px;
    text-align: center;
    text-decoration: none;
}
.fab:hover {
	color:white;
    opacity: 0.7;
    text-decoration: none;
}
.fa-facebook-f {
    background: #3B5998;
    color: white;
}

#to_top {
  position: fixed;
  display: none;
  top: 90%;
  left: 90%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}

#to_top:hover {
  opacity: .7;
}

#to_top a {
  display: none;
  text-align: center;
  padding: 16px;
  transition: all 0.3s ease;
  color: white;
  font-size: 20px;
}

.advert img {
  width: 150px;
  height: 100px;
  overflow: hidden;
}

@media all and (max-width: 480px) {
  .advert img {
    width: 80px;
    height: 65px;
  }
}

.col_center {
  float: none;
  margin: 0 auto;
}

.justify {
  text-align: justify;
  text-justify: inter-word;
}