Adding rounded corners to your web pages

There are several ways of adding rounded corners to your web page. There is a large list of methods found at Rounded Corners - css-discuss, but also a few other ways using JavaScript (some using jQuery):

  • The first (as far as I am aware) jQuery corner plugin (Dave Methvin)
  • An improved version (Mike Alsup) of the above plugin
  • curvyCorners - anti-aliased corners, supporting borders and background images
  • A modified version of curvyCorners made to work with jQuery.
  • The above plugin was rather big and couldn't be packed, so someone else made a futher modification that reduced its size and enabled it to be packed.
  • Cornerz - smooth, anti-aliased corners. Another jQuery plugin. Anti-aliased, but does not support backgrounds.
  • Rounded corners using <canvas>. <canvas> is a way of drawing/manipulating images via scripting (e.g. draw vector images, transformation, compositing, animations etc). There is a tutorial available on how to use it. Firefox 1.5+, Opera 9+, Safari only - excanvas adds support to Internet Explorer.

Implementations are not always heavily tested within different layouts and CSS, so while a preferred one may not work as expected, there should still be a way to add the effect (even if it involves more code).

A very light-weight way to do this would be via CSS 3 (as it supports multiple background images), but sadly only Safari supports this: demo. Could be some way off as the CSS 3 specification isn't finalized (but neither is CSS 2.1), although it is a useful feature that will likely not change (or be removed) and be adopted by newer versions of currently developed browsers (Firefox 3 and IE8 should hopefully have this).

Comments

Jonah said…
Cornerz also uses VML / Canvas. But doesn't reply on excanvas- making it very fast.
3:26 pm, January 19, 2008
Post a Comment

Popular posts from this blog

Select box manipulation with jQuery

If you read the jQuery mailing list , you may be aware that I have updated my plugins for working with select boxes . Summary of changes: addOption replaces any options with the same value (so think of it as an add/replace options plugin selectOptions selected options in addition to what was already selected, but there is now an option for it not to do this There are two new methods: copyOptions which is for copying options between select boxes ajaxAddOption allows you to add options via AJAX (i.e. could be used for create options dynamically from a server script)
Read more

iTextSharp: Generating a Basic PDF file (ASP.NET/C#)

iTextSharp is free library for .NET that allows you to create PDF documents. It can be used to dynamically create PDF's which can be streamed to the user. As there is no HTML being sent to the user, a WebHandler (ashx file) is a more appropriate way to generate your PDF than an aspx page. Download itextsharp-3.0.10-dll.zip (latest version as of 08 Feb 2006) and save the dll in the archive to your websites bin directory. Here is a basic sample of creating a PDF (more complex samples may follow in future posts). BasicPDF.ashx <%@ WebHandler Language="C#" Class="MyNamespace.BasicPDF" %> using System; using System.IO; using System.Web; using iTextSharp.text; using iTextSharp.text.pdf; namespace MyNamespace { public class BasicPDF: IHttpHandler { public bool IsReusable { get { return true; } } /// <summary> /// Font used for any hyperlinks added to the PDF /// </summary> private Font LinkFont { get ...
Read more

Popup Window Countdown (JavaScript)

This code opens a new popup window that contains a timer that counts down, then closes the window when it reaches 0. Will not work if user has a popup blocker blocking the page. <html> <head> <title>Popup Timer</title> <script language="JavaScript" type="text/JavaScript"> // popup window var var popup; // At what number shall the countdown counter start? CounterStart = 10; // This function CustomAction() can be modified to do // whatever you want done every second. function CustomAction() { popup.document.timer.timeleft.value = CounterStart; } // end of function CustomAction() // end of JavaScript customization function Decrement() { CounterStart--; CustomAction(); if(CounterStart <= 0) { popup.close(); alert('Timer reached 0'); } else { setTimeout('Decrement()',1000); } } function StartTheCounter() { openPopup(120,100); setTimeout('Decrement()',1000); } f...
Read more