body {  
font-family: Helvetica, Arial, sans-serif !important;  
font-size: 14px !important;  
}  
.wiki-content,  
.wiki-content p,  
.wiki-content table,  
.wiki-content tr,  
.wiki-content td,  
.wiki-content th,  
.wiki-content ol,  
.wiki-content ul,  
.wiki-content li {  
font-family: Helvetica, sans-serif !important;  
font-size: 14px !important;  
}