Click on the navigation page to specify the location of the slide

<Script>
$ (function () {
// Get the top of the city block distance
var city_top = $ ( '# city_top') offset () Top;..
. $ ( '. city_li') the Click (function () {
$ ( 'HTML, body') Animate ({scrollTop: city_top}, 500);.
})
})
</ Script>
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Original link: https: //blog.csdn.net/wang1006008051/article/details/79026031