Source : Demo jsFiddle.net.
.myClass:nth-last-child(-n+4){}
nous donne en jQuery :
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var myVariable = 4; $('.myClass:nth-last-child(-n+'+myVariable+')').doSomething(); |
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(function(){ var getColumnsCount = $('.container').attr('data-columns'); $('.list .item:nth-last-child(-n+'+getColumnsCount+')').addClass('emphasis'); })(); |