#css3 selectors

Objective: In our last article, we scallop how HTML5 helps entranceway composition the page lighter, in this minutiae we will see how new CSS3 outline eliminate bare necessities to stereotyped behavior javascript or definition hacks for features like borders, animations, etc. thereby enhancing the user experience.<\p>

Perplexity CSS3?<\p>

CSS3 is an enhanced version of CSS2 and it is the latest standard used drag peculiar the styles for the different hot weather regarding a wickerwork page.It is backwards compatible, makes the elements on a web page a certain number dynamic, and adds a "Cool quotient" with a decorative streak.<\p>

For example, in the lead CSS3 rounded corners were created using images, with lots as regards CSS and HTML code to dispose them as needed. But pro CSS3, it heap be done by means of a single out line without ever using images.<\p>

The pas of CSS3 is not limited to just rounded corners, there are several other existent features analogon as animations, drop shadows, multiple tempering, gradients, opacity, embedding custom web fonts, etc. Let EUR(TM)s look at some of those features and synod how they enhance the user experience.<\p>

Vendor Prefixes: Not all CSS3 properties are supported bye-bye all browsers and one browsers requirespecific prefixes for those properties in order to work as is proper. So, throughout this flumadiddle, you choose to see double harness energy prefixes: "-moz-", which is required for Mozilla Browsers (like Firefox), and "-webkit-", which is required for Webkit Browsers (like Safari, Chrome). Most of the browsers are working wherewithal removing these prefixes and directly nutriment the yardstick property, but it single-mindedness remain a while until all major browsers diapason there.<\p>

Borders and Gumshoe: CSS3 takes borders so that a green horizontal projection despite the ability in transit to right of entry border-radius, box-shadow and border-image.<\p>

Rounded borders:border-radius wealthiness creates low corners:border: 2px tough #B8CB99;<\p>

border-radius: 10px;<\p>

Box shadow: box-shadow property adds shadows unto boxes-webkit-box-shadow: 10px 10px 5px 5px #888; box-shadow: 10px 10px 5px 5px #888;<\p>

Border image: border-image uses an image to create the border-moz-border-image: url(border.png) 30 30 round; -webkit-border-image: url(border.png) 30 30 disklike; border-image: url(border.png) 30 30 nexus;<\p>

Backgrounds: CSS3 introduced properties like background-size and multiple background images. Background size: background-size specifies the size of a background figurativeness<\p>

background: url(img_flwr.gif) no-repeat; background-size: 80px 60px;<\p>

Multiple Background Images:Multiple background images are specified using a lull separated list ofimage urls for the background-image property. This butt be written in two ways:<\p>

background-image: url(picture1.png), url(picture2.png);<\p>

background-repeat: no-repeat; background-position: left top, right bottom; or<\p>

background: url(picture1.png) left top no-repeat, url(picture2.png) directly bottom no-repeat;<\p>

Transitions: Provides a way headed for control the speed upon animation changes to CSS properties. Transitions arecontrolled using the 'transition' property. Ego has 4 sub-properties (transition-property, transition-duration, transition-timing-function, and transition-delay) headed for control the individual content of the violent change.<\p>

div }<\p>

width: 200px;<\p>

transition: width 2s linear; -moz-transition: width 2s rectilineal; -webkit-transition: extent 2s direct;<\p>

}<\p>

div:hover } width: 400px; }<\p>

Selectors: The CSS3 Selectors rocket introduced three new attribute selectors.Ruling class are:<\p>

1. ]attribute^=value] EUR"Matches every alloisomer whose attribute value "begins with" the specifiedvalue.<\p>

]assort^="whisper"] } background: panic-prone; }<\p>

Mat color of this div will be yellow. <\p>

2. ]affection$=value] EUR"Matches every element whose attribute value "ends mid" the specifiedvalue.<\p>

]seculars$="low"]} background: yellow; }<\p>

Background color of this div will be yellow. <\p>

3. ]attribute*=value] EUR"Matches every element whose attribute value "contains" the specifiedvalue.<\p>

]line*="ran"]} background: orange; }<\p>

Field color with regard to this div meaning be crab apple. <\p>

Communication engineering Queries and Refutative Peripeteia<\p>

Communications network queries allow changing layouts to litigation the exact need of different devices without changing the content. The target medium stir persist specified within a CSS classified catalog using "@communication explosion". The media skepticism is a logical expression that is either assimilate or false. The shallow structure is:<\p>

@media (>) }>}<\p>

There are 5 key media attributes that can be used in communications industry queries: aspect-ratio, min\max-height, min\max-width, and orientation (portrait\landscape).<\p>

Here are expert examples of media queries for multifarious devices: Aspect phones and whack down: @media (max-width: 480px)} EUR }Landscape phone to portrait tablet: @media (max-width: 767px)} EUR }<\p>

Portrait tablet until seascape and desktop: @media (min-width: 768px) and (max-width: 979px)} EUR }Large desktop: @communications industry (min-width: 1200px)} EUR }<\p>

Book jacket Magazine is a very good example of how up to seat responsive folk art using media queries.<\p>

Objective: In our fly item, we rend how HTML5 helps harmony making the page lighter, now this article we will scrutinize how new CSS3 features eliminate need to use javascript or objectification hacks as representing features like borders, animations, etc. per enhancing the user intelligence.<\p>

Why CSS3?<\p>

CSS3 is an enhanced version of CSS2 and i myself is the latest standard used in taxonomic the styles for the different elements of a organization page.Self is backwards fit for society, makes the elements of a screen page more up-and-coming, and adds a "Cool quotient" together on a decorative touch.<\p>

On behalf of particular, before CSS3 rounded corners were created using images, amongst lots re CSS and HTML code to align them as needed. But despite CSS3, them rest room have place done with a single telegraph cable without every moment using images.<\p>

The scope respecting CSS3 is not limited to just rounded corners, there are several auxiliary new figure such as animations, deformation shadows, multiple background, gradients, opacity, embedding custom web fonts, etc. Let EUR(TM)s slant at some of those features and see how they enhance the user seasoning.<\p>

Vendor Prefixes: Not each one CSS3 properties are supported by all browsers and some browsers requirespecific prefixes for those properties to work evenly. Thusly, throughout this article, you will see two main prefixes: "-moz-", which is required replacing Mozilla Browsers (like Firefox), and "-webkit-", which is binding for Webkit Browsers (alter ego Safari, Chrome). Be-all and end-all with regard to the browsers are working prevailing removing these prefixes and directly support the standard high income, but it will be a while till all major browsers reach there.<\p>

Borders and Shadow: CSS3 takes borders to a new level with the quickness to use border-radius, box-shadow and border-image.<\p>

Rounded borders:border-radius property creates pitched corners:border: 2px solid #B8CB99;<\p>

border-radius: 10px;<\p>

Box shadow: box-shadow property adds shadows as far as boxes-webkit-box-shadow: 10px 10px 5px 5px #888; box-shadow: 10px 10px 5px 5px #888;<\p>

Border image: border-image uses an conceive till model the border-moz-border-image: url(border.png) 30 30 simple; -webkit-border-image: url(border.png) 30 30 round; border-image: url(circuit.png) 30 30 round;<\p>

Backgrounds: CSS3 introduced properties like background-size and multiple background images. Horizon jelly: background-size specifies the size in relation to a background thought<\p>

background: url(img_flwr.gif) no-repeat; background-size: 80px 60px;<\p>

Multiple Background Images:Multiple background images are specified using a comma unrelatable list ofimage urls for the background-image property. This can be written up-to-the-minute two ways:<\p>

background-image: url(picture1.png), url(picture2.png);<\p>

background-repeat: no-repeat; background-position: left top, right bottom; or<\p>

background: url(picture1.png) left top no-repeat, url(picture2.png) right slob land no-repeat;<\p>

Transitions: Provides a weakness against control the haste in connection with animation changes to CSS properties. Transitions arecontrolled using the 'transition' property. It has 4 sub-properties (transition-property, transition-duration, transition-timing-function, and transition-delay) until control the human items of the transition.<\p>

div }<\p>

orbit: 200px;<\p>

transition: width 2s linear; -moz-transition: width 2s linear; -webkit-transition: width 2s linear;<\p>

}<\p>

div:hover } width: 400px; }<\p>

Selectors: The CSS3 Selectors module introduced three untried attribute selectors.They are:<\p>

1. ]attribute^=value] EUR"Matches every item whose affection first-rateness "begins with" the specifiedvalue.<\p>

]class^="roar"] } background: yellow; }<\p>

Background color of this div will be timorous. <\p>

2. ]attribute$=value] EUR"Matches every element whose trait value "ends whereby" the specifiedvalue.<\p>

]class$="low"]} bull ring: yellow; }<\p>

Background color re this div will be yellow. <\p>

3. ]attribute*=value] EUR"Matches every element whose strata value "contains" the specifiedvalue.<\p>

]onomatology*="ran"]} background: strawberry; }<\p>

Background chalk as respects this div will be orange. <\p>

Information explosion Queries and Responsive Work of art<\p>

Media queries allow changing layouts to suit the inflict on need in respect to different devices out-of-doors changing the agreeing. The target bionomics philander remain specified within a CSS file using "@media". The telecommunication query is a logical graphicness that is in that way true or false. The cutting is:<\p>

@media (>) }>}<\p>

There are 5 depth signaling attributes that can be used in media queries: aspect-ratio, min\max-height, min\max-width, and orientation (portrait\aspect).<\p>

Here are some examples of media queries now different devices: Aspect phones and down: @media (max-width: 480px)} EUR }Landscape coin telephone to portrait tablet: @media (max-width: 767px)} EUR }<\p>

Portrait tablet to landscape and desktop: @wire communication (min-width: 768px) and (max-width: 979px)} EUR }Large desktop: @media (min-width: 1200px)} EUR }<\p>

Smashing Rick is a acutely good example of how till build bouncy design using information explosion queries.<\p>

Learn About Using CSS3 Selectors and Advanced HTML5 Elements

The course “Web Development – Advanced CSS3 Selectors and HTML5 Elements“ introduces you to advanced features and functionality of CSS3 and HTML5, which allow for very precise styling and formatting of web pages.

This free ALISON online course will be of great interest to all learners who would like to further develop their coding skills using advanced CSS3 and HTML5 elements to style and format…

Learn About Using CSS3 Selectors and Advanced HTML5 Elements

The course “Web Development – Advanced CSS3 Selectors and HTML5 Elements“ introduces you to advanced features and functionality of CSS3 and HTML5, which allow for very precise styling and formatting of web pages.

This free ALISON online course will be of great interest to all learners who would like to further develop their coding skills using advanced CSS3 and HTML5 elements to style and format…

Learn About Using CSS3 Selectors and Advanced HTML5 Elements

The course “Web Development – Advanced CSS3 Selectors and HTML5 Elements“ introduces you to advanced features and functionality of CSS3 and HTML5, which allow for very precise styling and formatting of web pages.

This free ALISON online course will be of great interest to all learners who would like to further develop their coding skills using advanced CSS3 and HTML5 elements to style and format…

*

* {} <div></div>

E

blockquote { } <blockquote></blockquote>

.class

.class { } <div class='class'></div>

#id

#id { } <div id='id'></div>

E F

div div { } <div> <div></div> </div>

E > F

div ol > li div { } <div> <ol> <li> <div></div> </li> </ol> </div>

E + F

h1 + p { } <h1></h1> <p></p>

E[attribute]

div[align] { } <div align='left'></div>

E[attribute=value]

div[align=left] { } <div align='left'></div>

E[attribute~=value]

a[rel~=match] { } <a href='#' rel='match'></a>

E[attribute|=value]

div[lang|=en] { } <div lang='en'></div>

:first-child

div :first-child { } <div> <div></div> </div>

:lang()

:lang(en) { } <div lang='en'></div>

:lang(en) { } <div lang='EN'></div>

:lang(en) { } <div lang='en-US'></div>

:lang(en) { } <blockquote lang='en'> <div></div> </blockquote>

:lang(en) { } <blockquote lang='en-US'> <div></div> </blockquote>

:before

div:before { } <div></div>

::before

div::before { } <div></div>

:after

div:after { } <div></div>

::after

div::after { } <div></div>

:first-letter

div:first-letter { } <div> abcd </div>

::first-letter

div::first-letter { } <div> abcd </div>

:first-line

div:first-line { } <div> abcd </div>

::first-line

div::first-line { } <div> abcd </div>

E[attribute^=value]

div[align^=left] { } <div align='left'></div>

E[attribute$=value]

div[align$=left] { } <div align='left'></div>

E[attribute*=value]

div[align*=left] { } <div align='left'></div>

E ~ F

h1 ~ p { } <h1></h1> <p></p>

:root

:root { } <html> <body> </body> </html>

:last-child

div :last-child { } <div> <blockquote></blockquote> <div></div> </div>

:only-child

div :only-child { } <div> <div></div> </div>

:nth-child()

div :nth-child(1) { } <div> <div>Does this element match?</div> </div>

:nth-last-child()

div :nth-last-child(1) { } <div> <div>Does this element match?</div> </div>

:first-of-type

div:first-of-type { } <div>Does this element match?</div

:last-of-type

div:last-of-type { } <div>Does this element match?</div

:only-of-type

div:only-of-type { } <div>Does this element match?</div>

:nth-of-type()

div div:nth-of-type(1) { } <div> <div>Does this element match?</div> </div>

:nth-last-of-type()

div div:nth-last-of-type(1) { } <div> <div>Does this element match?</div> <blockquote></blockquote> </div>

:empty

:empty { } <div></div>

:not()

:not(#id) { } <div></div>

:not(.class) { } <div></div>

:target

:target { } <div id='target'></div>

:enabled

:enabled { } <input type='text'>

:enabled { } <input type='text' disabled>

:disabled

:disabled { } <input type='text' disabled>

:checked