Chrome有个自定义背景色的文件 Custom.css
对于Firefox 下载 User Styles插件可以实现相同功能
再附加更多样式 有CSDN bnblog ITEye的博文底色
html, body {background-color: #e0dcc0!important;}
html, body {font-size:100%}
div.post {background-color: #e0dcc0!important;}
div.main {background-color: #e0dcc0!important;}
div#content {background-color: #e0dcc0!important;}
div.showBox {background-color: #e0dcc0!important;}
div.WB_feed {background-color: #e0dcc0}
div.blog_main{background-color: #e0dcc0!important;}
DIV.iteye-blog-content-contain{background-color: #e0dcc0!important;}
TEXTAREA#source.goog-textarea {background-color: #e0dcc0!important;}
div.p_content{background-color: #e0dcc0!important;}/*tieba*/
DIV.j_lzl_c_b_a.core_reply_content{background-color: #e0dcc0!important;}/*tieba*/
div.entry-content{background-color: #e0dcc0!important;}/*howtodoinJava*/