UIWebView *myWebView = [[UIWebView alloc] initWithFrame:CGRectMake(15, 10, 300, 10)];
myWebView.backgroundColor = [UIColor clearColor];
[myWebView setOpaque:NO];
myWebView.delegate = self;
[myView addSubview:myWebView];
NSString *bgClear = @"<body style="" background-color: transparent""> bla bla bla";
[myWebView loadHTMLString:bgClear baseURL:baseUrl];
[myWebView sizeThatFits:CGSizeZero];