css selects the first to second to last element_html/css_WEB-ITnose

css ie8

I now want to set the height of tr. There are 9 trs. How can I use css to select the first eight and set them to height: 90px; and set the last one to 40px?
It is required to be compatible with at least ie8

Reply to discussion (solution)

$("tr").css("height","90px");$("tr:last").css("height","40px");