/* quick ======= */
.nav-bar {
  position: fixed;
  top: 80%;
  right: 0%;
  width: 6vw;
  min-width: 60px;
  max-width: 100px;
  opacity: 0;
  transition: all 0.6s;
  z-index: 99;
}
.nav-bar.active {
  top: 17%;
  opacity: 1;
}
.nav-bar img {
  width: 100%;
}

#top_bn {
  position: relative;
  height: 10vw;
  max-height: 80px;
  background-color: #29b5b2;
  text-align: center;
}
#top_bn > img {
  display: block;
  width: auto;
  height: 100%;
  margin: 0 auto;
}
#top_bn #top_bn_cls {
  position: absolute;
  top: 50%;
  right: 8%;
  width: 3%;
  padding: 8px;
  min-width: 30px;
  max-width: 45px;
  transform: translate(0, -50%);
  cursor: pointer;
}
#top_bn #top_bn_cls img {
  width: 100%;
  height: auto;
}

@media all and (max-width: 1023px) {
  #top_bn #top_bn_cls {
    right: 5%;
    width: 20px;
    padding: 5px;
    min-width: 0px;
  }
}