modernizr | 易学教程

Modernizr How to do border-radius

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Could you please make me little bit clear about Modernizr . If I use a feature (say, border-radius ) and I run it using an older browser. Will the modernizer automatically add css to the page OR should I write code to render the control to view like having borders. If the second case is true, then WHY should I use Modernizr? Modernizr gives you mostly ways to test for HTML5 support, and then load in shims for what you're missing so that you can code to one, modern standard. It doesn't update the browser's native behaviors. So for CSS, while it detects whether or not your browser supports

how to detect if browsers support custom elements

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I'm looking at modernizr which is supposed to help with feature detection which is supposedly the bees knees in figuring out if your website is compatible with a given web browser but I do not see anything that indicates that I can use it to detect custom HTML elements that we create & define in our content. If it's not modernizr, how do I reliably detect whether a browser is capable of handling custom HTML elements the "HTML 5" way? Modernizr doesn't have a test for this at the moment, however since it has an API to create the element, it should be as simple as var supportsCustomElements = (

LESS CSS syntax useful for modernizr

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问题 Usually I use modernizr to find out the browser abilities. Same time, I use LESS CSS to make my css more readable and maintainable. Common style using LESS nested rules looks like this: #header { color: black; .logo { width: 300px; color: rgba(255,255,255,.6); &:hover { text-decoration: none } } } Then, if I use modernizr style fall-back, I add this text for previous block: .no-js #header, .no-rgba #header { .logo { color: white; } } So, it looks like I have two branches of code, and every

YepNopeJS: callback triggered before tiny JS file is fully loaded

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问题 I've got a site which is loading all kinds of external scripts using Modernizr.load (aka YepNopeJS). One of those scripts is a small statistics script (3,5 kB uncompressed) with a very simple callback function: Modernizr.load({ load: 'http://res.xtractor.no/x.js', callback: function() { _pxReg(); } }); _pxReg is simply a function defined in the x.js script. In about 50% of my pages, I receive an error message "Undefined variable: _pxReg" (Opera 12) or "'_pxReg' is undefined" (Internet

How to use Modernizr for input type=datetime?

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I made a custom build for HTML input fields & attributes and included that on my page in the <head> but that's not working. What else do I need to do? Not sure what it is you are trying to accomplish, but the "Input Attributes" option adds tests for the following <input> attributes: autocomplete , autofocus , list , placeholder , max , min , multiple , pattern , required , and step . -- Not sure what this has to do with <input type="datetime" ...> elements? The "Input Types" option does adds tests for the following type s of <input> elements: search , tel , url , email , datetime , date ,

Modernizr just for one quick check?

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I want to check if the browser who's running my page is capable of handling the 'html 5 placeholder' I know I can add the following javascript check: !Modernizr.input.placeholder but is it worth to import a library just for one check ? also how does modernizr do that for me (i mean how is it implemented under the cover) ? If you want to check for placeholder support, then all you need to do is; var placeholderSupport = "placeholder" in document.createElement("input"); And to answer your other question; no , there is absolutely no point including the whole Modernizr library for 1 line of JS

Modernizr load method

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I've problems with Modernizr load. I'm using Modernizr, jQuery and Nivo-slider. Sometimes when i refresh my homepage my slider don't appear correctly, sometimes everything is great. Is my method is the right thing to do ? HTML :  <script type="text/javascript" src="js/plugins/modernizr-2.0.6.js"></script> <script type="text/javascript" src="js/master.js"></script> In master.js : Modernizr.load([ { load: 'https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js', complete: function () { if ( !window.jQuery ) { Modernizr.load('js/plugins/jquery-1.7.1.js'); } init(); } },

How to test for mobile webkit

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问题 I'm looking to build a new website and want to take a responsible "mobile-first" approach. One tenet of this methodology is to only load what you need, and to avoid including large wasteful libraries and frameworks until you actually need them. For this I intend to use modernizr2 to test for features and then load only required files and libraries. On the javascript side, I'm really interested in using something like zepto.js (http://zeptojs.com/) which is a tiny javascript library (2-5k)

Should I use the new HTML5 semantic elements? [closed]

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I'm in the process of upgrading my website, and this involves the decision of using the new HTML5 semantic elements <nav> <header> <footer> <aside> <section> over regular old <div> elements. I do plan on supporting IE7 and IE8, but I know that these versions don't support the above semantic elements. I've read up about 'plugins' like Modernizr, Initializr and HTML5shiv, and I know that older browsers will then support the new elements IF JavaScript is enabled, but what am I supposed to do if it's not? By default, the <html> tag is given the class of no-js and if JavaScript is enabled,

Is okay to implement Modernizr with Twitter Bootstrap?

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问题 Is it OK to implement Modernizr with Twitter Bootstrap? I'm currently using Bootstrap with Google's html5shiv and I wanted to know if I can use Modernizr instead or is it overkill just to get HTML5 elements activated for older IE browsers? Thanks in advance 回答1: Modernizr is a test suite that adds feature detection via classes applied to the body tag. It includes HTML5Shi(v|m) to add older browser compatibility. You don't need Modernizr just to style new tags in older browsers. That said, it