* {box-sizing: border-box;}
/* Create three equal columns that floats next to each other */
.column {float: left;width: 33.33%;padding: 8px;background: #1995dc; color: #ffffff; height: auto;}
/* Clear floats after the columns */
.row:after {content: "";display: table;clear: both;}
.flex-container {display: flex;height: auto;flex-wrap: wrap;
  justify-content: center;background-color: #ffffff;}
.flex-container > div {background-color: #ffffff;border: 1px solid #d4d4d4; width: 15em;margin: 0.5em;padding: 8px 16px;text-align: center;line-height: auto;  text-decoration: none;font-size: 18px;}
.etn {display: block;padding: 8px 15px;color: #317eac;text-decoration: none;}
.etn:hover {background-color: #317eac;color: #fff;text-decoration: none;}