If Statement with css and viewport

Question

I wanna to get an if-Statement in CSS. If the viewport is under 1000px, then css should do sth. and then also an else-Statement. Is it possible only with css, or does I also need Java or sth. else

Answer 1

You can use media queries to do so:

@media all and (max-width: 999px) {
  /* Place your styles here  */
}

@media all and (min-width: 1000px) {
  /* Place your other styles here  */
}