// This is required for CALayer properties
#import "QuartzCore/QuartzCore.h"
// Create UIWebview Object
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(5, 20, 310, 220)];
// Create Rounded corners using CALayer property
[[webView layer] setCornerRadius:10];
[webView setClipsToBounds:YES];
// Set colored border using CALayer property I have set it to white
[[webView layer] setBorderColor:
[[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1] CGColor]];
[[webView layer] setBorderWidth:2.75];
[[self view] addSubview:webView];