ChangeEditorStyle.js

// ==UserScript==
// @name         Change Editor Style
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        http://m.shoplex.cn/phriction/edit/*
// @grant        none
// @require http://code.jquery.com/jquery-latest.js
// ==/UserScript==

(function() {
    'use strict';
    // Your code here...
    $('.phui-two-column-content.phui-two-column-footer').append('<div style="clear: both">');
    $('.phui-box.phui-box-border.phui-object-box.mlt.mll.mlr.phui-box-blue-property').css({'float':'left','min-width':'50%'});
    $('.phui-remarkup-preview').css({'float':'left','min-width':'49%'});
    $('.aphront-form-label').css({'width':'auto'});
    $('.aphront-form-error.aphront-form-required').css({'width':'auto'});
    $('.aphront-form-input').before('<br><br>').css({'margin-left': '0', 'width':'100%'});
    //$('#document-textarea').css({'height':'100%'});

    (function($) {

        // jQuery plugin definition
        $.fn.TextAreaExpander = function(minHeight, maxHeight) {

            console.log('helo');
            //var hCheck = !($.browser.msie || $.browser.opera);
            var hCheck = false;

            // resize a textarea
            function ResizeTextarea(e) {

                // event or initialize element?
                e = e.target || e;

                // find content length and box width
                var vlen = e.value.length, ewidth = e.offsetWidth;
                if (vlen != e.valLength || ewidth != e.boxWidth) {

                    if (hCheck && (vlen < e.valLength || ewidth != e.boxWidth)) e.style.height = "0px";
                    var h = Math.max(e.expandMin, Math.min(e.scrollHeight, e.expandMax));

                    e.style.overflow = (e.scrollHeight > h ? "auto" : "hidden");
                    e.style.height = h + "px";

                    e.valLength = vlen;
                    e.boxWidth = ewidth;
                }

                return true;
            };

            // initialize
            this.each(function() {

                // is a textarea?
                if (this.nodeName.toLowerCase() != "textarea") return;

                // set height restrictions
                var p = this.className.match(/expand(\d+)\-*(\d+)*/i);
                this.expandMin = minHeight || (p ? parseInt('0'+p[1], 10) : 0);
                this.expandMax = maxHeight || (p ? parseInt('0'+p[2], 10) : 99999);

                // initial resize
                ResizeTextarea(this);

                // zero vertical padding and add events
                if (!this.Initialized) {
                    this.Initialized = true;
                    $(this).css("padding-top", 0).css("padding-bottom", 0);
                    $(this).bind("keyup", ResizeTextarea).bind("focus", ResizeTextarea);
                }
            });

            return this;
        };

    })(jQuery);


    // initialize all expanding textareas
    jQuery(document).ready(function() {
        jQuery("textarea[class*=expand]").TextAreaExpander();
    });
    $('#document-textarea').TextAreaExpander();
})();