MrAMS/gist:575a3b3ea1cfba1545105e582db3faf6

## gistfile1.md

      
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    利用锚点改变事件onhashchange，详见使用jQuery的scrollTop向前滚回导航栏的高度（比如我的100个像素）
HTML:
<body onhashchange="fix_the_nav();">
</body>

js:
function fix_the_nav() {
    if(window.location.hash){
            var target = $(location.hash);
            $("body,html").scrollTop(target.offset().top-100); # my nav size is 100px
    }
}
Done.