2018-08-31 17:03:13 +08:00

47 lines
1.0 KiB
JavaScript

$(function(){
// slideToTop
var slideToTop = $("<div />");
slideToTop.html('<i class="fa fa-chevron-up"></i>');
slideToTop.css({
position: 'fixed',
bottom: '20px',
right: '25px',
width: '40px',
height: '40px',
color: '#eee',
'font-size': '',
'line-height': '40px',
'text-align': 'center',
'background-color': '#222d32',
cursor: 'pointer',
'border-radius': '5px',
'z-index': '99999',
opacity: '.7',
'display': 'none'
});
slideToTop.on('mouseenter', function () {
$(this).css('opacity', '1');
});
slideToTop.on('mouseout', function () {
$(this).css('opacity', '.7');
});
$('.wrapper').append(slideToTop);
$(window).scroll(function () {
if ($(window).scrollTop() >= 150) {
if (!$(slideToTop).is(':visible')) {
$(slideToTop).fadeIn(500);
}
} else {
$(slideToTop).fadeOut(500);
}
});
$(slideToTop).click(function () {
$("html,body").animate({ // firefox ie not support body, chrome support body. but found that new version chrome not support body too.
scrollTop: 0
}, 100);
});
});