<div class="view">
  <img src="https://hsto.org/r/w120/webt/5e/48/2c/5e482c00032cf391481775.png">
</div>

.view{
  overflow: hidden;
  resize: both;
  border: 1px dashed #f00;
  text-align: center;
  width: 100%;
  height: 200px;
}
.view img{
  width: calc(768px - 100%)
}