Tag Archive > html

Css Selectors Demo

» 23 December 2009 » In Css Articles » No Comments

Today we’ll take a look at one of the new features in css3, by using the selector. Css3 is packed with some new, great features, which simplifies the styling of lists. We’ll show you how to use Alternative row styling with pure css. This is something that you typically would have to use either javascript or programming (php,asp) to achieve earlier, but here you will see how to do this with just a few lines of css.

Be aware that not all browsers are yet supported to use css3. IE does not yet support this, but if you give it a try in Firefox, Opera or Safari, you’ll see how nice this plays!

This is the result:

css selector demo

As you can see, the even and odd is ehh..even and odd! The Every third line can be set to whatever you want. Take a look at the css:

/* Css3 selector demo by csstemplatesweb.com */
 
* { margin: 0; padding: 0; outline: 0; }
body { background-color: #2f3135; color: #fff; }
h1 { font-family: "Tahoma"; color: #fff; font-weight: normal; margin:0 0 40px 0; }
h2 { font-family: "Tahoma"; color: #ececec; font-weight: normal; margin:0 0 30px 30px; }
h3 { font-family: "Tahoma"; color: #fff; font-weight: normal; margin:0 0 10px 30px; }
img { border: none; }
#container { width: 960px; margin: 20px auto; }
 
ul { margin: 0 0 15px 60px; }
ul.odd li:nth-child(odd) { color: blue; margin-left: 15px; }
ul.even li:nth-child(even) { color: green; margin-left: 15px; }
ul.every3 li:nth-child(3n) { color: orange; margin-left: 15px; }
 
p {margin:20px 0 0 40px;}
a {color:#fff;}

The only thing you need to look at here, is the 4 lines starting with ul. It’s pretty self explaining :)

The html markup looks like this:

?View Code HTML4STRICT

 
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Css3 selectors</title>
    <link rel="Stylesheet" href="styles.css" />
</head>
<body>
<div id="container">
<h1>Css3 Selector demo</h1>
<h2>Alternate row styling</h2>
<h3>Even</h3>
<ul class="even">
<li>A sample text here 1</li>
<li>A sample text here 2</li>
<li>A sample text here 3</li>
<li>A sample text here 4</li>
</ul>
<h3>Odd</h3>
<ul class="odd">
<li>A sample text here 1</li>
<li>A sample text here 2</li>
<li>A sample text here 3</li>
<li>A sample text here 4</li>
</ul>
<h3>Every third row</h3>
<ul class="every3">
<li>A sample text here 1</li>
<li>A sample text here 2</li>
<li>A sample text here 3</li>
<li>A sample text here 4</li>
<li>A sample text here 5</li>
<li>A sample text here 6</li>
</ul>
<p>For more tutorials, articles and css templates, please visit <a href="https://csstemplatesweb.com">csstemplatesweb.com</a></p>
</div>
</body>
</html>

That’s it! You can download the files below if you want to play with it. Please share this if you like it!

Download: Css3 Selectors demo  Css3 Selectors demo (975 bytes, 296 hits)

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Tags: , css3, , , , ,

How to warn IE6 users

» 23 June 2009 » In Web developer tips » No Comments

First of all, do not dump support for Internet Explorer 6, that is not the intention of this article. The point is to, where possible, ensure that your site works in IE6. But where it’s not possible, or you would have to spend too much time and energy on writing “hacks” to make it work, you can apply a warning/information to consider upgrading IE or to use another browser.

What not to do

The point is to encourage the user to upgrade, not to force an upgrade (telling how dumb the user is by using IE6). If a site is already works as it should in IE6, or if you could invest very little time in getting it working, it’s better if you don’t include a warning at all. At least you could try to integrate the IE7 JavaScript library, available from , or by overriding some of the CSS via an IE6-specific style sheet. The image below shows Joe Levi’s one-line upgrade method, “scaring” people to upgrade by pretending an OS alert, but encouragement is better than underhand methods.

Scaring users to upgrade

When to warn

Generally, you should only show warnings when they’re directly beneficial to the user, such as a major part of the site is based on functionality that does not work or render properly in IE6. If you misuse your trust as a website owner, and force the user to upgrade for no practical reasons, it will just be an unnecessary hassle for the user. And when they return to the site with a new or updated browser, only to see that site has no changes, they’ll lose all trust in it.
If you get too “hung-up” in hating IE6, and decide to block access to all IE6 users, you can be pretty sure that they will never return, regardless of what browser they later end up with. The choice must always always rest with the user, they have to be in control of making the decision. And if they don’t want to upgrade, that’s down to them and it’s their loss. However, with the right approach, you can encourage them by explaining the benefits of switching or upgrading their browser, you’re more likely to get a positive result this way. The image below is from Travellerspoint, and it looks nice.

A nice warning message

Be kind

The truth is, while you and me know that it is better to either upgrade or switching your browser, many users aren’t even aware that alternatives to Internet Explorer exists. Also, many people still have to use IE6 at work. With this in mind, we should create the warnings-text in a kind way. Tell the user that they’re using an old browser and that, because of this, the site they’re currently on won’t look its best, and some functionality might be unavailable. Then suggest that, for a better browsing expreience, they should consider upgrading.

Applying the warning

It only takes a few lines of html code to apply the IE6 warning. You need to make use of conditional comments to apply it to your website. The code below is one way of doing it. It wraps a conditional comment around the relevant code block:

?View Code HTML4STRICT

Modern, compliant browsers will just ignore this block of code. But versions of IE below version 7 will read it and treat it as html. So, if this was read by an IE6 browser, it would generate the html placed in the block, but if it was by IE7 or IE8, it would ignore it.

So, the conclusion would be: Keep it simple, keep it polite, and reassure and assist IE6 users, rather than showing them the finger.

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Tags: , , web, , , ,

How to create a favicon

» 05 May 2009 » In Web developer tips » No Comments

faviconsA favourite icon, called favicon, is the small icon that is displayed in the browser address bar, and it will also show in your bookmarks. It is a lot easier for the user to find the bookmark of your site, if you have created a favicon, and attached it to your website. If you look in your browser bar right now, you can see a pink little graphic square, this is the favicon of this site, making it easy to remember that you may have visited this site earlier. In short: using a favicon will improve the overall look of your website. So, how do we create a favicon? The favicon of this site is made in Adobe Photoshop.

Favicon information

Favicons have the extension .ico, and they must be named favicon.ico. The dimension of the icons must be 16×16.

Photoshop

To make .ico files in Photoshop, you need to download a plugin. This can be found here, it’s a Windows Icon Photoshop plugin. When you have done this, then you can start by creating a new file, but remember that it needs to be downsized to 16×16, so you can create a new file with the dimensions 128×128, 64×64 and so on (you get the idea?). Then, design your new amazing looking favicon, and last but not least, go to Image Size and click on Resample Image. This option is better than just selecting Image Resize, because it will make sure that the image does not blur when you scale it down.

Upload the icon

The only thing you need to remember here, is to upload it to your sites root directory.

Edit your header

You also need to edit the header section of the files in your website. It should look like this:

?View Code HTML4STRICT
<head>
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
</head>

That’s it! Now you can test in your favourite browser, it looks better now, right?

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Transparent images using css

» 28 April 2009 » In Css Articles » No Comments

It is very easy to make an image transparent, by using opacity, using only 1 line in your css. In this example, I’ll set the opacity to 40%. This is the html code:

?View Code HTML4STRICT
<img src="#" width="150" height="150" alt="image" class="transparent" />

You can see that we call for the class “transparent”, in the css class transparent, we have the following code:

.transparent{ opacity:0.4;filter:alpha(opacity=40) }

This is all that it takes to show a tranparent image in css. You can also use the same code for transparency on text. Note that Firefox uses the property opacity:value for transparency, IE uses filter:alpha(opacity=value). This works in all modern browsers.
Here you can see a screenshot, one with the opacity set, and one without the opacity:
transparencytest
In CSS3, the syntax for transparency/opacity will be “opacity:value”.

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Tags: , css3, , opacity, transparent, ,

Pure css tooltip

» 17 July 2008 » In Css Articles » 2 Comments

To save both space and frustration, it is often wise to use css tooltips to show a small popup with some helping words to the readers of your webpage. It’s very easy to make, looks great, and you keep your readers from dissapearing from your site.

How to make the css tooltip:

You have to put the tooltip text inside the span attributes. The html look like this:

?View Code HTML4STRICT
This is just some text, and if you <a href="#">Roll your mouse over here <span>Then this text will show as a pure css tooltip</span></a> which is pretty neat!

And the css looks like this:

a{
z-index:10;
}
a:hover{
position:relative;
z-index:100;
}
a span{
display:none;
}
a:hover span{
display:block;
position:absolute;
float:left;
white-space:nowrap;
top:-2.2em;
left:.5em;
background:#fffcd1;
border:1px solid #444;
color:#444;
padding:1px 5px;
z-index:10;
}

So now you know an easy way to show really nice and helpful tips to your users, with the help of only pure css tooltip. Good luck!

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Tags: , css tooltip, , tooltip

What is ajax

» 28 February 2008 » In Ajax Articles » No Comments

AJAX (Asynchronous JavaScript and XML), or Ajax, is a group of inter-related web development techniques used for creating interactive web applications. A primary characteristic is the increased responsiveness and interactivity of web pages achieved by exchanging small amounts of data with the server “behind the scenes” so that entire web pages do not have to be reloaded each time there is a need to fetch data from the server. This is intended to increase the web page’s interactivity, speed, functionality, and usability.

AJAX is asynchronous; in that extra data is requested from the server and loaded in the background without interfering with the display and behavior of the existing page. JavaScript is the scripting language in which AJAX function calls are usually made.[1] Data is retrieved using the XMLHttpRequest object that is available to scripting languages run in modern browsers, or alternatively Remote Scripting in browsers that do not support XMLHttpRequest. There is, however, no requirement that the asynchronous content be formatted in XML.

AJAX is a cross-platform technique usable on many different operating systems, computer architectures, and web browsers as it is based on open standards such as JavaScript and the DOM. There are free and open source implementations of suitable frameworks and libraries.

Constituent technologies

AJAX uses a combination of:

  • XHTML (or HTML) and CSS, for marking up and styling information.
  • The DOM accessed with a client-side scripting language, especially ECMAScript implementations such as JavaScript and JScript, to dynamically display and interact with the information presented.
  • The XMLHttpRequest object is used to exchange data asynchronously with the web server. In some Ajax frameworks and in certain situations, an IFrame object is used instead of the XMLHttpRequest object to exchange data with the web server, and in other implementations, dynamically added <script> tags may be used.
  • XML is sometimes used as the format for transferring data between the server and client, although any format will work, including preformatted HTML, plain text and JSON. These files may be created dynamically by some form of server-side scripting.

Like DHTML, LAMP, and SPA, Ajax is not a technology in itself, but a term that refers to the use of a group of technologies.

The “core” and defining element of Ajax is the XMLHttpRequest object, which gives browsers the ability to make dynamic and asynchronous data requests without having to reload a page, eliminating the need for page refreshes.

Besides XMLHttpRequest, the use of DOM, CSS, and JavaScript provides a richer “single-page” experience.

[Source: wikipedia]

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Tags: ajax, , programming, web,

What is xhtml

» 19 February 2008 » In Xhtml Articles » No Comments

  • XHTML stands for EXtensible HyperText Markup Language
  • XHTML is aimed to replace HTML
  • XHTML is almost identical to HTML 4.01
  • XHTML is a stricter and cleaner version of HTML
  • XHTML is HTML defined as an XML application
  • XHTML is a W3C Recommendation

XHTML 1.0 became a W3C Recommendation January 26, 2000. W3C defines XHTML as the latest version of HTML. XHTML will gradually replace HTML.

XHTML is compatible with HTML 4.01, and all new browsers have support for XHTML.

Why XHTML?

We have reached a point where many pages on the WWW contain “bad” HTML, the following HTML code will work fine if you view it in a browser, even if it does not follow the HTML rules:

?View Code HTML

This is bad HTML

Bad HTML

XML is a markup language where everything has to be marked up correctly, which results in “well-formed” documents.

XML was designed to describe data and HTML was designed to display data.

Today’s market consists of different browser technologies, some browsers run Internet on computers, and some browsers run Internet on mobile phones and hand helds. The last-mentioned do not have the resources or power to interpret a “bad” markup language.

Therefore – by combining HTML and XML, and their strengths, we got a markup language that is useful now and in the future – XHTML.

XHTML pages can be read by all XML enabled devices AND while waiting for the rest of the world to upgrade to XML supported browsers, XHTML gives you the opportunity to write “well-formed” documents now, that work in all browsers and that are backward browser compatible

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Tags: , , strict, transitional, w3c,

What is css

» 16 February 2008 » In Css Articles » No Comments

CSS means Cascading Style Sheets. CSS is a system of rules that directly effect the display properties of your web pages such as colors, fonts and layouts. CSS style blocks are also commonly referred to as rules. These rules can be embedded into an individual HTML page or placed in an external file that will control many individual pages on your website. Thus changing a property in one place in the linked style sheet will immediately make that change on every web page that is linked to it.

“CSS Web Template” is a website design created using Cascading Style Sheets (CSS) technology. Cascading style sheets provide web developers an easy way to format and to style web pages. CSS will be used even more because it is seen the same way by all browsers, making it the best option during the browser wars.

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