/* CSS Document */
.container1 {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.container1 img {
  width: 100%;
  height: auto;
}

.container1 .btn1 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  background-color: rgba(0, 0, 0, 0.5);

  color: yellow;
  font-size: 16px;
  padding: 6px 12px;
  border: none;
  cursor: pointer;
  border-radius: 5px;
  text-align: center;
}

.container1 .btn1:hover {
  background-color: black;
}