@media (-o-min-device-pixel-ratio: 2/1) {
.test-math-and-units { font: ignores 0/0 rules; test-division: 4 / 2 + 5em; simple: 1px + 1px; }
}
@media (-o-min-device-pixel-ratio: 2/1) {
.test-math-and-units { font: ignores 0/0 rules; test-division: 4 / 2 + 5em; simple: 1px + 1px; }
}