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click the arrow-up pic to jump to the top of page.
当前为
// ==UserScript==
// @name Click To Top
// @namespace http://tampermonkey.net/
// @version 0.2
// @description click the arrow-up pic to jump to the top of page.
// @author kilin
// @include *
// @match *
// @grant none
// ==/UserScript==
(function() {
'use strict';
window.onload = function(){
var aNode = document.createElement('a');
aNode.href = 'javascript:;';
aNode.id = 'click-to-top';
aNode.title = 'Click it to go to the top';
var css = '#click-to-top{ position: fixed; right: 5%; bottom: 20%; opacity: 0.2; z-index: 99; } #click-to-top:hover{ position: fixed; right: 5%; bottom: 20%; opacity: 1; z-index: 99; }';
//图片相关
var img = document.createElement('img');
img.src = 'https://ooo.0o0.ooo/2017/05/23/59245c636b321.png';
img.style = 'width: 30px; height: 30px;';
//样式相关
var style = document.createElement('style');
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
document.getElementsByTagName('head')[0].appendChild(style);
aNode.append(img);
aNode.addEventListener('click', function(){document.documentElement.scrollIntoView();}, false);
var body = document.querySelector('body');
body.append(aNode);
};
})();