:not(выделение текста) + автоколонирование

autocolumned.css

/* one item */
li:nth-child(1):nth-last-child(1) {
	width: 100%;
}

/* two items */
li:nth-child(1):nth-last-child(2),
li:nth-child(2):nth-last-child(1) {
	width: 50%;
}

/* three items */
li:nth-child(1):nth-last-child(3),
li:nth-child(2):nth-last-child(2),
li:nth-child(3):nth-last-child(1) {
	width: 33.3333%;
}

/* four items */
li:nth-child(1):nth-last-child(4),
li:nth-child(2):nth-last-child(3),
li:nth-child(3):nth-last-child(2),
li:nth-child(4):nth-last-child(1) {
	width: 25%;
}

disable_text_highlighting.css

.disable_text_highlighting {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}