回到顶部

自动生成一个带有回到顶部功能的按钮

目前为 2023-02-08 提交的版本。查看 最新版本

// ==UserScript==
// @name         回到顶部
// @namespace    http://tampermonkey.net/
// @version      0.6
// @description  自动生成一个带有回到顶部功能的按钮
// @author       CoderBen
// @match        *://*/*
// @icon         https://cdn3.iconfinder.com/data/icons/leto-space/64/__rocket_spaceship-64.png
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    if (window.frames.length === parent.frames.length) {
      createButton()
    }

    function createButton() {
      const btn = document.createElement('div')
      btn.innerHTML = '<img width="50px" height="50px" alt="↑" title="回到顶部" src="data:image/png;base64,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"/>'
      btn.style.fontSize = '28px'
      btn.style.fontWeight = 900
      btn.style.textAlign = 'center'
      btn.style.lineHeight = '50px'
      btn.style.cursor = 'pointer'
      btn.style.width = '50px'
      btn.style.height = '50px'
      btn.style.background = '#f7f7f7'
      btn.style.position = 'fixed'
      btn.style.right = '400px'
      btn.style.bottom = '50px'
      btn.style.zIndex = 99999
      btn.onclick = () => scrollTo(0, 0)
      document.querySelector('html body').appendChild(btn)
    }
})();

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