美味的CSS动画汉堡包：hamburgers_html/css

美味的CSS动画汉堡包：hamburgers_html/css_WEB-ITnose

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Freigeben： 2016-06-21 08:55:22

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Hamburgers

Hamburgers is a collection of tasty CSS-animated hamburger icons. Also included is the source as a Sass library. It’s modular and customizable, so cook up your own hamburger.

Usage
Customization
Accessibility
Browser Support

Usage

Download and include the CSS in the

of your site:

<link href="dist/hamburgers.css" rel="stylesheet">

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Add the base hamburger markup:

<button class="hamburger" type="button">  <span class="hamburger-box">    <span class="hamburger-inner"></span>  </span></button>

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You can use

s if you insist, but they’re not accessible as a menu button.

<div class="hamburger" type="button">  <div class="hamburger-box">    <div class="hamburger-inner"></div>  </div></div>

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Append the class name of the type of hamburger you’re craving:

<button class="hamburger hamburger--collapse" type="button">  <span class="hamburger-box">    <span class="hamburger-inner"></span>  </span></button>

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Here’s the list of hamburger-type classes you can choose from:

hamburger--arrowhamburger--arrow-rhamburger--arrowalthamburger--arrowalt-rhamburger--boringhamburger--collapsehamburger--collapse-rhamburger--elastichamburger--elastic-rhamburger--emphatichamburger--emphatic-rhamburger--sliderhamburger--slider-rhamburger--spinhamburger--spin-rhamburger--squeezehamburger--vortexhamburger--vortex-r

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Note: -r classes are reverse variants (e.g. hamburger--spin spins clockwise whereas hamburger--spin-r spins counterclockwise.

Trigger the active state by appending class name is-active:

<button class="hamburger hamburger--collapse is-active" type="button">  <span class="hamburger-box">    <span class="hamburger-inner"></span>  </span></button>

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Since the class name would have to be toggled via JavaScript and implementation would differ based on the context of how you plan on using the hamburger, I’m going to leave the rest up to you.

Sass

I’ve also included .scss source files if you use Sass as your CSS precompiler. It’s customizable and modular.

Download and unzip the source files.

Copy the files from the _sass/hamburgers directory into your project.

Import the hamburgers.scss file in your Sass manifest file:

@import "path/to/hamburgers";

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Customize your hamburger and/or remove any types you don’t want in hamburgers.scss.

Compile your Sass*, and voila!

Hamburgers is also available on npm and Bower.

npm install hamburgersbower install css-hamburgers

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* Be sure to run the CSS through Autoprefixer since the Sass doesn’t account for vendor prefixes.

Customization

Here is the full list of default settings (found in _sass/hamburgers/hamburgers.scss);

$hamburger-padding-x                       : 15px !default;$hamburger-padding-y                       : 15px !default;$hamburger-layer-width                     : 40px !default;$hamburger-layer-height                    : 4px !default;$hamburger-layer-spacing                   : 6px !default;$hamburger-layer-color                     : #000 !default;$hamburger-layer-border-radius             : 4px !default;$hamburger-hover-opacity                   : 0.7 !default;$hamburger-hover-transition-duration       : 0.15s !default;$hamburger-hover-transition-timing-function: linear !default;// To use CSS filters as the hover effect instead of opacity,// set $hamburger-hover-use-filter as true and// change the value of $hamburger-hover-filter accordingly.$hamburger-hover-use-filter: false !default;$hamburger-hover-filter    : opacity(50%) !default;

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To override any default settings, you can change the value(s) within hamburgers.scss, but I recommend you declare your new settings separately:

@import "path/to/hamburgers";$hamburgers-padding-x: 20px;$hamburgers-padding-y: 15px;

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You can also create a separate file (e.g. hamburgers-settings.scss) with those declarations, then import it along with Hamburgers:

@import "path/to/hamburgers";@import "hamburgers-settings"

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ems or rems

Wanna work with ems or rems instead of px? Just change all the px values to the unit of your choice. Note: Be consistent (all px or all ems), otherwise it may break—the math behind the customization will fail if it attempts to perform operations with values of different units.

Not satisfied?

Dig into _base.scss or types/ and customize to your heart’s content. Fair warning: It‘s pretty delicate and may break, especially if you tweak the animations themselves.

Accessibility

Hamburger menu icons can be useful in the right context, but they’re not the most accessible.

ARIA will help make it accessible to people with disabilities.

<button class="hamburger hamburger--elastic" type="button"        aria-label="Menu" aria-controls="navigation">  <span class="hamburger-box">    <span class="hamburger-inner"></span>  </span></button><nav id="navigation">  <!--navigation goes here--></nav>

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If you insist on using

s, by default they’re not focusable (i.e. via keyboard or assistive technology). Add the tabindex attribute alongside ARIA.

<div class="hamburger hamburger--elastic" tabindex="0"     aria-label="Menu" role="button" aria-controls="navigation">  <div class="hamburger-box">    <div class="hamburger-inner"></div>  </div></div><nav id="navigation">  <!--navigation goes here--></nav>

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A label can help make it more obvious that it toggles a menu.

<button class="hamburger hamburger--collapse" type="button">  <span class="hamburger-box">    <span class="hamburger-inner"></span>  </span>  <span class="hamburger-label">Menu</span></button>

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Here are some resources on web accessibility and ARIA.

Browser Support

Animations use CSS3 3D transforms (translate3d whenever possible for GPU acceleration), which is supported by most browsers (not supported by IE9 and older and Opera Mini). For detailed browser support, check caniuse.com.

项目地址： https://github.com/jonsuh/hamburgers