UIWebView调整大小

- (void)webViewDidFinishLoad:(UIWebView *)webview {
    CGRect frame = webView.frame;
    frame.size.height = 1;
    frame.size.width = screenWidth;
    webView.frame = frame;
    CGSize fittingSize = [webView sizeThatFits:CGSizeZero];
    frame.size = fittingSize;
    webView.frame = frame;
    [bodyScroll setContentSize:CGSizeMake(screenWidth, webView.frame.origin.y + webView.frame.size.height+keyboardRectY+60)];

CGSize fittingSize = [webView sizeThatFits:CGSizeMake(screenWidht, 1)];