css 冲突

<td class="chanye" >  <a href="#">效果</a> 

错误：<td class="chanye"  style="color:#000000">  <a href="#">效果</a> 

.chanye {
 font-family: "宋体";
 font-size: 12px;
 color: #000000;
 display: block;
}
.chanye a:link {
 text-decoration: none;
 font-size: 12px;
 color: #666666;
}
.chanye a:visited {
 text-decoration: none;
 color: #666666;
}
.chanye a:hover {
 text-decoration: underline;
 color: #FFFFFF;
 font-size: 12px;
 background-color: #9052A1;
}
.chanye a:active {
 text-decoration: none;
 color: #666666;
}