导航栏
.navigation { position: fixed; bottom: 100px; right: 100px; z-index: 100; }.navigation { transition: bottom 2s; -webkit-transition: bottom 2s; }
JQ代码
var nav = eval($('.navigation').offset().top - $(window).scrollTop()); $(window).on('scroll', function() { var navh = $('.navigation').height(); var foot = parseInt($('.footer').offset().top - $(this).scrollTop() - navh); /*console.log(nav - foot);*/ if(nav == foot || nav > foot) { $('.navigation').css({ 'position': 'fixed', 'bottom': '400px' }); } else { $('.navigation').css({ 'position': 'fixed', 'bottom': '100px' }); } });
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