#myBtnContainer {margin-top: 3vh;}
.btn {border: none;outline: none;padding: 12px 16px;background-color: white;cursor: pointer;}
.btn:hover {background-color: #ddd;}
.btn.active {background-color: #666;color: white;}
.column {float: left;width: 45%;display: none;margin-left: 3vw;}
.content {background-color: white;padding: 10px;border: 1px #e8e1df solid;}
.row {margin: 8px -16px;}
.row, .row > .column {padding: 8px;}
.row:after {content: "";display: table;clear: both;}
.show {display: block;}