ul {
    width: 300px;
    height: 300px;
    padding: 10px;
    margin: 0;
    border: 4px dashed #555;
}
ul li {
	display: block;
	width: 50px;
	height: 50px;
	margin: 10px;
	list-style: none;
    border: 4px solid #ed9305;
}

ul {
	display: flex;
	flex-flow: column-reverse wrap-reverse;
}