* {
  box-sizing: border-box;
}

body {
  font-family: Arial;
  padding: 20px;
  background: #f1f1f1;
}

.header {
  padding: 30px;
  font-size: 40px;
  text-align: center;
  background: white;
}


.card {
   background-color: white;
   padding: 20px;
   margin-top: 20px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}


.column {
  float: left;
  width: 50%;
  padding: 5px;
}



}