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$(document).ready(function() { $('.cross-box a.item .add2b, .cross-box a.item .wish').on('click', function(event) { event.preventDefault(); }); var select = $('.custom-select'), optionValue = $('.custom-select option:selected').text(); if (window.innerWidth >= 992) { select.width(20 + (optionValue.length * 6)); } else { select.width(20 + (optionValue.length * 5)); } select.css('opacity', 1); });