31-05-2015
Chuoicute bạn vào file style.css (hay file chứa css của bạn) paste đoạn css sau vào cuối:

.aichat{padding:1px 5px;margin:2px 0;border:1px solid transparent;border-radius:5px;display:inline-block;font:bold 12px Arial}a.aichatLink:hover{text-decoration:none}a.aichatLink:hover .aichat{color:#176093;text-decoration:none;background-color:#f0f7fc;padding:0 6px;border:1px solid #a5cae4}.aichat a{color:inherit}.aichat.aichatPrimary{color:#176093;background-color:#d7edfc;border-color:#d7edfc}.aichat.aichatSecondary{color:#8f6c3f;background-color:#f9d9b0;border-color:#f9d9b0}.aichat.aichatRed{color:white;background-color:red;border-color:#F88}.aichat.aichatGreen{color:white;background-color:green;border-color:green}.aichat.aichatOlive{color:black;background-color:olive;border-color:olive}.aichat.aichatLightGreen{color:black;background-color:lightgreen;border-color:lightgreen}.aichat.aichatBlue{color:white;background-color:blue;border-color:#88F}.aichat.aichatRoyalBlue{color:white;background-color:royalblue;border-color:#81A9E1}.aichat.aichatSkyBlue{color:black;background-color:skyblue;border-color:skyblue}.aichat.aichatGray{color:black;background-color:gray;border-color:#AAA}.aichat.aichatBlack{color:#ffffff;background-color:#000000;border-color:#000000}.aichat.aichatSilver{color:black;background-color:silver;border-color:silver}.aichat.aichatYellow{color:black;background-color:yellow;border-color:#E0E000}.aichat.aichatOrange{color:black;background-color:orange;border-color:#FFC520}.discussionListItem .aichat,.searchResult .aichat{font-size:80%;margin:0;line-height:15px;font-weight:normal}

rồi bạn sử dụng mã html như sau:

<span class="aichat aichatRed">Nội dung hiển thị</span>

- Thay Red thành tên màu khác (English) như: blue, green, black, silver, ...v.v
- THế là ok