.row {
	
}
.header {
	flex: 1;
	padding: 1px;
	font-family: "Arial Black";
	font-size: 22px;
	color: #FFFFFF;
	text-align: center;
}
.center {
	margin-left: auto;
	margin-right: auto;
	background-color: #808080;
}
.header img {
	margin-right: auto;
	margin-left: auto;
}
@media screen and (max-width:700px) {
  .header img{
    width:100%;
    margin-left:0px;
    margin-right:0px;
    width: 100%;
    
     /* The width is 100%, when the viewport is 800px or smaller */
  }
}