.box {
  text-align: center;
} 

.image-container {
	position: relative;
	display: inline-block;
	border-radius: 10px;
	overflow: hidden;
	width: 355px;
	height: 215px;
	margin-left: auto;
	margin-right: auto;
	margin: 10px;
}

.overlay {
  position: relative;
  width: 370px;
  height: 217px;
  background-color: rgba(0, 0, 0, 0.50);
  top: 50%;
  left: 50%;
}    
  
.centered-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-color:rgba(0, 0, 0, 0.50);
  line-height: 2.5;
}