![]() If you're concerned about users hitting this limit, cut larger images or set a max-width on the. Using PNG, a 1600-pixel-wide image can be cut with a minimal file size. This method is horizontally fluid relative to the size of the left background image applied to. c which merely overlays the left with a right-positioned, non-repeating background image. ft,) has a corresponding nested "corner" or "cap", CSS class. Each "left" section (elements with CSS classes. The method is quite simple: The whole dialog is vertically split into three slices, each being an instance of the "Sliding Doors" method. Ideally, one of many styles of rounded-corner box could be swapped out with any other using this method, without having to modify the HTML. Header, Body, FooterĪn approach like this may be more valuable than others, because Web Developers want to write code that can meet potentially-changing design requirements. For example, Douglas Bowman's simple yet ingenious Sliding Doors method, uses a parent element with a single nested child in order to provide CSS "hooks" for two background images - thus forming a left and right "cap" which can realise, in a fluid matter, a varying number of designs. Thus, we are left with nesting elements and other techniques which allow the kind of effects we want. Unfortunately, current standards don't provide this sort of affordance. Most design problems with CSS involve a desire to have multiple, stretched or fluid background images on a single element. The only real requirement is providing enough elements for CSS to apply background images, borders, margins and padding to - and in the case of rounded-corner dialogs, the nesting of elements for the "Sliding Doors" method. It is my opinion that the cleanest solutions for producing design and layout will focus on CSS and well-formed, flexible and "copy-paste"-able-type markup: No javascript, no hacks, and more reliable results. Some have programmatically tried to generate corners via one-pixel div elements using Javascript while perhaps a minor technical feat, they are ultimately kludgy, slow and perhaps unreliable. (See BoxLib.)Ī lot of other approaches (do a search for "css rounded corners") use CSS hacks, inline images or even Javascript to accomplish the desired behaviour. Many hours, late nights and coffee have undoubtedly been spent and drank, respectively, working on the problem of "give me a fluid box with rounded corners." I can personally attest to this. Layout is one thing, rounded corners are an even more heinous crime - that's so 1997.īeen There, Done That. I tried this in 2003, and I don't recommend it I have since moved on. Keep change and varying space requirements in mind at all times.Įlements could be dynamically added, but that introduces external dependencies (Javascript) and potential performance issues. Goes against flexibility, scalable layout etc. ![]() Related to above don't litter markup with inline rounded corners, for example.įixed-width/height design is generally bad. Minimal, if any, extra cruft and "hook" elements. How does one standardize code and approaches to building potentially-numerous variants of rounded-corner boxes, allowing for fluid design and retaining flexibility for future updates, without going crazy? What We Don't WantĪs Web Developers, the usual ideals apply when writing code to meet a design goal. ![]() (Side disclaimer: The code and design examples shown are my own, and are not necessarily Yahoo!-related.)įrom a Web Development perspective, these kind of design requirements can still bring the occasional headache. You know it, your Mom knows it and even your Grandmother probably knows it by now: Rounded corners, borders and drop shadows (while nothing new) are all the rage these days on the "Web 2.0, fully Ajaxed, Ajax-enhanced, Ajaxified *" Web 2.0-era Web.Īs I write this, I am in the midst of Web Development on the new Yahoo! Photos (unofficially version "3.0" internally, I just call it a "dream job,") which could theoretically have no shortage of rounded-corner dialogs using equally-round borders, drop shadows and perhaps even gradients. A new technique, Even More Rounded Corners With CSS, has been published it uses a single image instead of slices, and still supports PNG + alpha transparency etc.
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