/*-----codepen------*/

* {
  box-sizing: border-box;
  background-color: transparent;
}

.flag_container {
  position: relative;
  margin: 2rem auto;
  width: 225px;
}

#gallery {
  white-space: nowrap;
  font-size: 0px;
  height: auto;
  overflow: hidden;
  position: relative;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
  border-radius: 15px;
}

#gallery img {
  width: 100%;
  height: auto;
}

#next {
  position: absolute;
  outline: none;
  cursor: pointer;
  border-color: transparent transparent transparent #565f69;
  border-style: solid solid solid solid;
  border-width: 12.5px 0 12.5px 20px;
  height: 0px;
  width: 0px;
  top: 40%;
  color: #000;
  font-size: 1.2rem;
}

#previous {
  position: absolute;
  outline: none;
  cursor: pointer;
  border-color: transparent #565f69 transparent transparent;
  border-style: solid solid solid solid;
  border-width: 12.5px 20px 12.5px 0px;
  height: 0px;
  width: 0px;
  top: 40%;
  color: #000;
  font-size: 1.2rem;
}

#previous {
  z-index: 10;
  left: -30%;
  -webkit-transition: 0.3s;
  -o-transition: 0.3s;
  transition: 0.3s
}

#next {
  z-index: 10;
  right: -30%;
}

/*----codepen----*/