The No-Pressure Introduction to CSS3 It's difficult to escape the hype surrounding CSS3 at the moment, yet it has created a divide in the community. If you read any blog post on the subject and it is flooded with comments by developers who feel they still cannot use CSS3 in their work. Rather than being encouraging the responses from the experts in our community can appear as aggressive and superior. Although they are correct in saying CSS3 can be used now, the decision must still fall to the individual, even if their opinions are based on inaccurate assumptions. In this article I'll try to cover some of the more widely adopted CSS3 advancements, showing you not only how to use them but also the support you will likely expect from the major browsers. Why We Can Use CSS3 Now The arguments as to why we cannot use CSS3 include such things as the specification not being finalised or that some elements of CSS3 are either poorly supported or not supported at all. Vendor Prefixes Vendor prefixes that are in use today are : Examples
CSS3 Solutions for Internet Explorer Advertisement Experienced developers understand that CSS3 can be added to new projects with progressive enhancement in mind. This ensures that content is accessible while non-supportive browsers fall back to a less-enhanced experience for the user. But developers could face a situation where a client insists that the enhancements work cross-browser, demanding support even for IE6. Opacity / Transparency I think all developers are baffled at why Internet Explorer still fails to support this very popular (albeit troublesome) property. The Syntax You really only need the second line, which works in all versions of Internet Explorer. The opacity value at the end of each IE line works basically the same way that the opacity property does, taking a number from 0 to 100 (the opacity property takes a two-digit number from 0 to 1, so “44″ for IE would be “0.44″ for the others). The Demonstration This is the same element without the opacity settings. The Drawbacks Rounded Corners (border-radius)
Styling form controls with CSS, revisited Over two years ago, in September 2004, I posted an article called Styling form controls. My intention with that article (and its follow-up, Styling even more form controls) was to show that attempting to use CSS to make form controls look similar across browsers and operating systems in an exercise in futility. It simply cannot be done. Since discussions about applying CSS to form controls continuously crop up, new versions of browsers and operating systems, and entirely new browsers have been released since September 2004, it was time for an update. Because of all this I spent way too much time creating a total of 224 screenshots showing the effects of various CSS rules applied to form controls. I have created a demo page for each type of form control: Each page contains screenshots from each of the tested platforms, as well as a set of styled form controls that you can use to check the results in browsers that I did not include. So what does this experiment show?
CSS Refreshers: Borders Sure, we’re all familiar with borders. Is there anything new that could possibly be introduced? Well, I bet there’s quite a few things in this article that you never knew about! Not only can CSS3 be used to create rounded corners, but plain-ole' CSS can also be wrestled into displaying custom shapes. The Basics You’re likely familiar with the most basic use of borders. The above code will apply a 1px border to an element. In addition to passing a specific value to border-width, three keywords may alternatively be used: thin, medium, and thick. While it might initially seem unnecessary to ever make use of the long-hand form, there are a handful of cases when it’s advantageous, such as when you need to update some aspect of a border when a designated event occurs. Perhaps you need to change the color of a border when the user hovers over a specific element. A more elegant and DRY approach would be to specifically update the border-color property. Border-Radius Beyond the Basics Multiple Borders
Fluid CSS3 Slideshow with Parallax Effect In this tutorial we will create a slideshow with a parallax effect using several CSS3 properties. The idea is to move the background positions of two backgrounds while sliding the container of the slides. View demo Download source In this tutorial, we are going to create a slideshow with a parallax effect with the help of some CSS3 properties. The graphics used in the demo are by: 5Milli (Global Vector Map) and by WeGraphics (Free Vector Infographic Kit). Please note: the result of this tutorial will only work as intended in browsers that support the respective CSS properties. The Markup We will “connect” the input elements to the division with the class sp-content by using the general sibling combinator. The list elements are the wrappers for each slide and although we are using simply images here, you can use any kind of content. The CSS We’ll set the width of the main container to 80% and set the width of the divisions with class sp-content and class sp-parallax-bg to 100%.
CSS: Getting Into Good Coding Habits Set for printing In this article we will look at what might be considered best practices, or perhaps, good coding habits to get into. To begin, we will look at removing any defaults that a browser may add to our elements and then look at how we can explicitly set the values we want. If you are new to CSS, you may want to bring yourself up to speed by reading a series of tutorials I wrote called An introduction to CSS. The beauty of CSS is the control it gives us. We can use CSS in three ways. Inline CSS Embedded CSS External CSS Inline CSS is the least flexible of the three options listed above. <p style="margin: 20px;" >My paragraph text</p> The inline style in Listing 1 above is highlighted. This situation is further complicated when we need to make changes to our code. Embedded CSS is somewhat of a halfway house between inline styles and an external style sheet. p { margin: 20px; An embedded style sheet is contained in an opening and closing pair, and it exists in the head of your page.
Une feuille de styles de base pour bien démarrer vos projets Avec cette astuce, je vous propose un outil et une méthodologie pour partir du bon pied lorsque vous attaquez les styles CSS d'un nouveau projet. Un outil? → une feuille de styles CSS qui corrige ou définit les styles des principaux éléments de vos pages. (Yay, du code à copier-coller!) Quels objectifs? Utiliser une feuille de styles de base, quelle qu'elle soit, répond à deux objectifs principaux: Gommer certaines différences entre les styles par défaut des navigateurs. Notre feuille de styles de base Le code CSS suivant constitue la partie "reset" de la feuille de styles que nous utilisons chez Alsacréations pour nos projets professionnels. L'ensemble de ce projet de "framework CSS" minimaliste se nomme KNACSS est est disponible en libre téléchargement. Rappel : n'employez pas ce reset CSS sans avoir parcouru au minimum les indications laissées dans le code complet commenté. Où placer ces styles? Le plus simple est sans doute de placer ces styles dans un fichier séparé. Bonus
Learn CSS Positioning in Ten Steps: position static relative absolute float 1. position:static The default positioning for all elements is position:static, which means the element is not positioned and occurs where it normally would in the document. Normally you wouldn't specify this unless you needed to override a positioning that had been previously set. 2. position:relative If you specify position:relative, then you can use top or bottom, and left or right to move the element relative to where it would normally occur in the document. Let's move div-1 down 20 pixels, and to the left 40 pixels: Notice the space where div-1 normally would have been if we had not moved it: now it is an empty space. It appears that position:relative is not very useful, but it will perform an important task later in this tutorial. 3. position:absolute When you specify position:absolute, the element is removed from the document and placed exactly where you tell it to go. Let's move div-1a to the top right of the page: What I really want is to position div-1a relative to div-1. Footnotes 10.
John Manoogian III » Blog Archive » (The Only) Ten Things To Kno AKA, “Secrets of the patented JM3 Gasbag Model™” - a getting-started list to make sense of CSS. [2,547 diggs and counting.] The Point of CSS is to use clean, simple HTML in your page, then write CSS “rules” that style the objects on your page. The page stays clean and looks cool, and your HTML page works on both mobile devices and regular browsers. That’s the point of CSS. But The Art of CSS is quickly and easily referring to the right objects in your page from your CSS rules. The act of matching CSS rules to HTML tags is like a conversation: both sides need to be clear and in sync with each other, or they’ll talk over each other and you’ll get a headache from all the yelling.General or Specific Matching: suppose you want to style an **<h1>** header in your page. You can combine the above rules in different ways, too; to style all <h1>tags of type "barleymash" inside of forms of type "magicform", use css rule **form.magicform h1.barleymash { Hacks are stupid.
21 outils et générateurs CSS pour développeurs web Les générateurs et outils CSS sont de plus en plus nombreux sur la toile, et facilitent la tâche des développeurs web en leur faisant gagner un gain de temps considérable, en particulier ceux qui génèrent du CSS3. Voici une liste non exhaustive de 21 ressources CSS à connaître et à tester dès maintenant ! 1. Bear CSS Bear CSS est un service qui permet de générer une feuille de style à partir d’un code HTML en prenant en compte les éléments et le balisage de la structure du document (id et classes CSS). 2. CSS Type Set est un service qui permet de gérer la mise en forme d’un texte dans une interface simple et intuitive. 3. Border Radius est un générateur déstiné uniquement à la propriété CSS3 border-radius qui permet de créer des coins arrondis sur un élément HTML. 4. 5. 6. 7. CSS3 Please est probablement l’un des tous meilleurs générateurs CSS3. 8. 9.
How to Build a Fully Functional CSS3-Only Content Slider Content sliders are a great way to make a website more dynamic. They add flair, and if used correctly, could be the difference between a purchase and a back button. Normally, they would be built with jQuery or some other Javascript library. The result won’t be the most semantic thing to ever be made, but it will be completely functional nonetheless. Demo & Source Files View the DemoDownload the Source Files Screenshot Some simple HTML to start with Granted, that looks scary. We have a “content-slider” div, which holds all the content. Then, we have two sections: the “content” div and the “nav” ul. Now, right inside the “content” div, you’ll notice 6 nested divs: “content-inner-1” through “content-inner-6“. The Magical CSS As I said, all we did to the “content-slider” div was center it, and move it 100px from the top of the page. The “content” div styling is very important. Now, the “content-inner” div is what holds all of the pages. Now, we have some generic styling. Here’s the code:
A CSS Sticky Footer A CSS Sticky Footer that just works We've all tried to use a CSS Sticky Footer one time or another, but they never seem to come out right, do they? Well, the days of a hard to understand CSS Sticky Footer are thankfully over. Usage of the CSS Sticky Footer Great! Absolutely. View the CSS or learn about using it NEW: HTML5 Sticky Footer 50+ Useful CSS3 Tutorials to Enhance Your Skills People in the web design community now has been talking about the wonders brought about by CSS3. Obviously, it is does not only control the styling of the web page as what CSS2 does, but also the behavioral attributes of the design. This novel technology certainly makes it convenient for you to add animations and transitions right on your stylesheet. Although it is hoped to be the technology that can perform a multi-faceted role in web designing, CSS3 unfortunately is not yet a w3C standard. While it is easier and more powerful than the previous versions, not all of its functions however have the support of major browsers unlike Javascript libraries. When the newest stylesheet language however reaches its full potential, it will surely change the way we do things in the industry. CSS3 Tutorials on Sliders, Carousels, Galleries and Accordions Responsive CSS3 Slider Without Javascript The actual slider is much like any JavaScript slider. How to Create a Content Accordion in Pure CSS3