在webView的delegate回調(diào)方法 ? ?- (void)webViewDidFinishLoad:(UIWebView *)webView;中寫(xiě)上一下語(yǔ)句即可
//字體大小
[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '330%'"];
//字體顏色
[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextFillColor= 'gray'"];
//頁(yè)面背景色
[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.background='#2E2E2E'"];
或者：
UIFont * fontSize = [UIFont systemFontOfSize:16];?
UIColor *fontColor = [UIColorFromRGB(0x666666)];
NSString *jsString = [[NSString alloc] initWithFormat:@"document.body.style.fontSize=%f;document.body.style.color=%@",fontSize,fontColor];
[webView stringByEvaluatingJavaScriptFromString:jsString];
