// ==UserScript==
// @name         知乎排版优化
// @namespace    https://www.zhihu.com/
// @version      0.2
// @description  知乎排版优化!
// @author       You
// @match        https://www.zhihu.com/question*
// @match        https://www.zhihu.com
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    function getByClass(sClass){
        var aResult=[];
        var aEle=document.getElementsByTagName('*');
        /*正则模式*/
        var re=new RegExp("\\b" + sClass + "\\b","g");
        for(var i=0;i<aEle.length;i++){
            /*字符串search方法判断是否存在匹配*/
            if(aEle[i].className.search(re) != -1){
                aResult.push(aEle[i]);
            }
        }
        return aResult[0];
    }
    
    var selectInner = getByClass('zm-side-section-inner').getElementsByTagName("button");
    var re = getByClass('zu-main-sidebar');
    re.remove();
    var inner = getByClass('zu-main-content-inner');
    inner.style.marginLeft = '150px';
    inner.style.marginRight = '150px';
    var backtotop = getByClass('zh-backtotop');
    backtotop.style.marginLeft = '350px';
    var rightInner = document.createElement("div");
    rightInner.className='zu-main-sidebar';
    rightInner.style.width = '0';
    rightInner.style.marginLeft = '-130px';
    rightInner.appendChild(selectInner[0]);
    var zuMain = document.getElementById('zh-single-question-page');
    zuMain.appendChild(rightInner);
})();