html{height:initial;background-color:#d3d3d3}body{margin:5px auto;max-width:1000px}.demo-card-square.mdl-card{width:300px;height:470px}.person1{color:#fff;background:url(https://okj.harka.com/img/jozsef.jpg) 10% no-repeat #46b6ac}.person2{color:#fff;background:url(https://sara.harka.com/img/sara-harka.jpg) 10% no-repeat #46b6ac}.person3{color:#fff;background:url(https://daniel.harka.com/img/daniel-harka.jpg) 10% no-repeat #46b6ac}.cards{display:flex;justify-content:space-around;flex-wrap:wrap}.center{text-align:center}#link,a,a:active,a:visited{color:green;text-decoration:none;letter-spacing:1px}.cards>app-card{margin:5px}table{margin:auto;font-weight:700}