Self-writing jquery web page Back to Top Effect, fade icon, reference js File

Well, come in for development. When there are too many webpages, you need a button to quickly return to the top, instead of rolling the pulley by yourself ~

It was originally difficult to say that the above header should be implemented in Javascript, which page reference and which page display.

As a result, Ben diaosi tried to write it. Well, I didn't find it. It's quite easy to say ~~

If there is a fart, I will be able to put it on the Code directly. If there is more fart, it will become a shit ~~ Oh, sin, Amitabha, amen ~~

$(function(){var $btn_top = $('');$btn_top.css("display","none");$btn_top.css("width","40px");$btn_top.css("height","40px");$btn_top.css("position","fixed");$btn_top.css("right","20px");$btn_top.css("bottom","100px");$btn_top.css("z-index","990");$("body").append($btn_top);$("body").on("click","#scrollTop",function(){$("html,body").animate({scrollTop: 0},"slow");});if($(window).scrollTop() > 100){$("#scrollTop").fadeIn(600);}$(window).scroll(function(){if($(window).scrollTop() > 100){$("#scrollTop").fadeIn(600);}else{$("#scrollTop").fadeOut(600);}});});

Find an image by yourself. Here I use the absolute path "http://www.bkjia.com/uploads/allianz 140529/01395kz7-0.png"

You can directly change the size of Line 4 and line 5 to avoid adding cat labels on the page ~~ (> ^ ω ^ <) Meow ~~~

Save it as a js file and reference it directly ~~~

Please add QQ: 1740437 for communication. Thank you for your advice ~~

In addition, I also sought from the legendary friends who love the ancient style, as well as those who love the folk music, or those who want to film micro-movies ~~