.flex-container {
  padding: 0;
  margin: 0;
  list-style: none;
  background:#B1B1B1;
  height:400px;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  
  align-items: stretch;/*flex-start | flex-end | center | baseline | stretch;*/
  -webkit-align-items: stretch; /* Safari 7.0+ */
}


  


.flex-item {
  background: tomato;
  padding: 5px;
  width: 200px;
  /*height: 150px;*/
  margin: 10px;
  line-height: 150px;
  color: white;
  font-weight: bold;
  font-size: 3em;
  text-align: center;
}

.flex-container .flex-item:nth-child(2) {
	align-self: flex-end;
	-webkit-align-self: flex-end;
}