CKeditor编辑器首行缩进修改:
https://cloud.tencent.com/developer/article/2011803
d.config.indentOffset||40 将40修改为2
d.config.indentUnit||"px" 将px修改为em
b.getComputedStyle("direction"))?"margin-left":"margin-right"} 将"margin-left":"margin-right"修改为"text-indent":"text-indent"
config.allowedContent = true;