去掉csdn的黑色背景.

.markdown_views.prism-tomorrow-night .prettyprint, .markdown_views.prism-tomorrow-night pre.prettyprint,.markdown_views.prism-tomorrow-night .prettyprint, .markdown_views.prism-tomorrow-night .prettyprint .pre-numbering, .markdown_views.prism-tomorrow-night pre.prettyprint,.markdown_views.prism-tomorrow-night pre code,.markdown_views.prism-tomorrow-night pre code,.prism-tomorrow-night .prism{
    background-color:initial!important;
}

黑色背景太伤眼!
光靠css还不行,还要靠js:

function gxt(){
    zfg(".prism-atom-one-light .prism .token.comment","font-style:initial!important;font-family:KaiTi!important;");
    zfg(".prism-tomorrow-night .prism .token.comment","font-style:initial!important;font-family:KaiTi!important;");
}

加上楷体.