Scroll to Top and Bottom Buttons

Add buttons to scroll to the top and bottom of the page

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Scroll to Top and Bottom Buttons
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Add buttons to scroll to the top and bottom of the page
// @author       1010n111
// @match        *://*/*
// @grant        none
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    // 创建按钮元素
    const topButton = document.createElement('button');
    topButton.innerHTML = '↑'; // 向上箭头
    topButton.style.position = 'fixed';
    topButton.style.left = '20px';
    topButton.style.top = '50%';
    topButton.style.transform = 'translateY(-100%)';
    topButton.style.zIndex = '9999';
    topButton.style.fontSize = '24px';
    topButton.style.padding = '8px 12px';
    topButton.style.border = 'none';
    topButton.style.borderRadius = '8px';
    topButton.style.backgroundColor = '#444';
    topButton.style.color = 'white';
    topButton.style.cursor = 'pointer';
    topButton.style.boxShadow = '0 2px 4px rgba(0, 0, 0, 0.2)';
    topButton.addEventListener('mouseenter', () => {
        topButton.style.backgroundColor = '#555';
    });
    topButton.addEventListener('mouseleave', () => {
        topButton.style.backgroundColor = '#444';
    });
    topButton.addEventListener('click', () => {
        window.scrollTo({
            top: 0,
            behavior: 'smooth'
        });
    });

    const bottomButton = document.createElement('button');
    bottomButton.innerHTML = '↓'; // 向下箭头
    bottomButton.style.position = 'fixed';
    bottomButton.style.left = '20px';
    bottomButton.style.top = 'calc(50% + 60px)';
    bottomButton.style.zIndex = '9999';
    bottomButton.style.fontSize = '24px';
    bottomButton.style.padding = '8px 12px';
    bottomButton.style.border = 'none';
    bottomButton.style.borderRadius = '8px';
    bottomButton.style.backgroundColor = '#444';
    bottomButton.style.color = 'white';
    bottomButton.style.cursor = 'pointer';
    bottomButton.style.boxShadow = '0 2px 4px rgba(0, 0, 0, 0.2)';
    bottomButton.addEventListener('mouseenter', () => {
        bottomButton.style.backgroundColor = '#555';
    });
    bottomButton.addEventListener('mouseleave', () => {
        bottomButton.style.backgroundColor = '#444';
    });
    bottomButton.addEventListener('click', () => {
        window.scrollTo({
            top: document.body.scrollHeight,
            behavior: 'smooth'
        });
    });

    // 将按钮添加到页面
    document.body.appendChild(topButton);
    document.body.appendChild(bottomButton);
})();