.image-container{
  position: relative;
  width: 100%;
  min-height: 360px;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#mapImg{
  max-width: 100%;
  height: auto;
  display: block;
  padding: 0px 55px;
}

.nav-btn{
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  border: none;
  background: rgba(0,0,0,.35);
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  font-size: 22px;
  line-height: 42px;
  text-align: center;
  cursor: pointer;
}

.nav-btn:hover{ background: rgba(0,0,0,.55); }

.prev{ left: 12px; }
.next{ right: 12px; }

/* В режиме GIF кнопки прячем */
.image-container.is-gif .nav-btn{ display:none; }