Home > Developer > Web Develop

Css3 perfectly solves the problem of mobile phone horizontal and vertical screen judgment, making it easier for users to see the invitation letter. css3 invitation letter

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

Css3 perfectly solves the problem of mobile phone horizontal and vertical screen judgment, making it easier for users to see the invitation letter. css3 invitation letter

Html:


<Div id = "cover1"> </div>

<P id = "cover1w"> dear user, please view the content on the portrait screen. Thank you ^ _ ^ </p>




Css:



/* Determine the portrait screen of the mobile phone */

@ Media screen and (orientation: portrait ){
/* Css [vertical style definition] */
# Cover1 {display: none; width: 100%; height: 100%; background-color: #000; opacity: 1; position: absolute; z-index: 9999; top: 0px; left: 0px ;}
# Cover1w {display: none; width: 70%; height: 40px; position: absolute; z-index: 10000; top: 50%; left: 15%; margin-top:-20px; font-size: 18px; color: # fff; font-weight: bolder; text-align: center ;}

}

@ Media screen and (orientation: landscape ){
/* Css [horizontally defining styles] */
# Cover1 {display: block; width: 100%; height: 100%; background-color: #000; opacity: 1; position: absolute; z-index: 9999; top: 0px; left: 0px ;}
# Cover1w {display: block; width: 70%; height: 40px; position: absolute; z-index: 10000; top: 50%; left: 15%; margin-top:-20px; font-size: 18px; color: # fff; font-weight: bolder; text-align: center ;}

}


/* PC client or large screen device: 1280px to greater */
@ Media only screen and (min-width: 1280px ){
# Cover1 {display: none; width: 100%; height: 100%; background-color: #000; opacity: 1; position: absolute; z-index: 9999; top: 0px; left: 0px ;}
# Cover1w {display: none; width: 70%; height: 40px; position: absolute; z-index: 10000; top: 50%; left: 15%; margin-top:-20px; font-size: 18px; color: # fff; font-weight: bolder; text-align: center ;}
}




Other reference solutions:


When a user rotates the screen, it enters your monitoring method and obtains the status of the current screen through window. orientation:
0-Portrait Screen
90-rotate the horizontal screen counterclockwise
-90-rotate the horizontal screen clockwise
180-Portrait screen, upside down

 

If you do not want the user to view your webpage on a horizontal screen, you can use the transition in CSS3 to keep the PAGE vertical in the face of the body in the device rotation time listener.

The page on the mobile device has an orientationchange event when the screen rotates. You can add a listener for this event to the body element:

<Body onorientationchange = "updateOrientation ();">


Js Solution


Today, we will share a jQuery code to help you determine whether a screen is landscape or landscape. Note that the jQuery method is called here, so you need to reference the jQuery class library. Function orient (){
Alert ('gete ');
If (window. orientation = 0 | Windows. orientation = 180 ){
$ ("Body"). attr ("class", "portrait ");
Orientation = 'portrait ';
Return false;
}
Else if (window. orientation = 90 | window. orientation =-90 ){
$ ("Body"). attr ("class", "landscape ");
Orientation = 'landscape ';

Return false;
}
}


$ (Function (){
Orient ();
});


$ (Window). bind ('orientationchang', function (e ){
Orient ();
});









Zookeeper

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
features of html5 and css3 basics of web design html5 and css3 css3 interview questions and answers for experienced sample of uppercase letter and lowercase letter beginning html5 and css3 for dummies html5 and css3 book html5 and css3 video tutorials

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More