.container img {
  vertical-align: top;
  transition: 0.8s transform;
  width: 100%;
  background-color: brown;
}

.container {
  width: 700px;
  background-color: aqua;
  overflow: hidden;
  position: relative;
  margin: 15px;
}

.container .zoom-btns {
  position: absolute;
  z-index: 1;
  top: 5px;
}

.container .zoom-btn {
  display: inline;
  padding: 3px 6px;
  border: 2px grey solid;
  cursor: pointer;
}

.container .zoom-btn:hover {
  opacity: 0.8;
}

.container .scale {
  position: absolute;
  cursor: grab;
}