.gallery{
  position: relative;
  overflow: hidden;
}
.gallery .movable{
  display: flex;
 /* height: 500px; */
  height: 490px;
  transition: transform 0.4s;
}
.gallery .movable > div {
  flex:1;
  min-width:100%;
}

#prev, #next{
  display:inline-block;
  position:relative;
 /* top:530px; */
  cursor:pointer;
  padding:5px;

}