Pen Settings

HTML

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

Learn more · Versions

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

Learn more · Versions

CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

Powered by Algolia
About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

Learn more · Versions

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

Powered by Algolia
About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Powered by Algolia
About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML 

              
                <html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Baidu_Bear</title>
    <link rel="stylesheet" href="./baidu_beer.css">
</head>
<body style="transform: scale(.5);">
    <div class="main">
        <div class="nose">
            <div class="nose-be"></div>
            <div class="nose-mi"></div>
            <div class="nose-af"></div>

            <div class="l-eye-wrap">
                <div class="eye eye-be"></div>
                <div class="eye eye-mi"></div>
                <div class="eye eye-af"></div>

                <div class="l-eye-face"></div>
                <div class="l-ear-wrap">
                    <div class="ear l-ear">
                        <div class="ear-hole l-ear-hole"></div>
                        <div class="ear-hole-mask l-ear-hole-mask"></div>
                    </div>
                </div>
            </div>

            <div class="r-eye-wrap">
                <div class="eye eye-be"></div>
                <div class="eye eye-mi"></div>
                <div class="eye eye-af"></div>
                <div class="r-eye-face"></div>
                <div class="r-ear-wrap">
                    <div class="ear r-ear">
                        <div class="ear-hole r-ear-hole"></div>
                        <div class="ear-hole-mask r-ear-hole-mask"></div>
                    </div>
                </div>
            </div>
        </div>
        <div class="header"></div>
        <div class="face"></div>
    </div>

    <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="0" height="0">
        <defs>
            <filter id="gooey">
                <feGaussianBlur in="SourceGraphic" stdDeviation="10" result="step1"/>
                <feColorMatrix in="step1" mode="matrix" values="
                    1 0 0 0 0
                    0 1 0 0 0
                    0 0 1 0 0  
                    0 0 0 19 -9" result="step2" />
                <feComposite in="SourceGraphic" in2="step2" operator="atop"/>
            </filter>
        </defs>
    </svg>
</body>
</html>
!

CSS 

              
                .face,.nose{-webkit-transform:scale(0,0)}.face,.nose-af,.nose-be,.nose-mi{-webkit-transition:1s;position:absolute}.ear,.eye,.face,.l-ear-wrap,.l-eye-face,.l-eye-wrap,.main,.nose,.nose-af,.nose-be,.nose-mi,.r-ear-wrap,.r-eye-face,.r-eye-wrap{position:absolute}*{box-sizing:border-box}body,html{height:100%}body{margin:0;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-flow:column wrap;flex-flow:column wrap;background:#E74C3C}.main{top:68%;left:50%}.nose{top:50%;left:50%;margin-left:-40px;margin-top:-30px;width:80px;height:80px;z-index:10;transform:scale(0,0);-webkit-filter:url(#gooey);filter:url(#gooey)}.nose-af,.nose-be,.nose-mi{transition:1s;top:55px;left:0;width:100%;height:100%;border-radius:50%;background:#88282A}.nose-be{-webkit-transform:rotate(-60deg);transform:rotate(-60deg)}.nose-af{-webkit-transform:rotate(60deg);transform:rotate(60deg)}.nose.nose-end .nose-mi{left:17px;top:58px;width:50px;height:30px;border-radius:40px 40px 80px 80px/20px 20px 80px 80px}.nose.nose-end .nose-af,.nose.nose-end .nose-be{background:0 0}.nose-mor .nose-mi{-webkit-animation:gooey-mor-animate 2s ease-in-out .16s forwards;animation:gooey-mor-animate 2s ease-in-out .16s forwards}.nose-mor .nose-be{-webkit-animation:gooey-mor-be-animate 2s ease-in-out forwards;animation:gooey-mor-be-animate 2s ease-in-out forwards}.nose-mor .nose-af{-webkit-animation:gooey-mor-af-animate 2s ease-in-out .32s forwards;animation:gooey-mor-af-animate 2s ease-in-out .32s forwards}.face{transition:1s;top:17px;left:-99px;width:201px;height:130px;border-radius:50%;z-index:5;background:#F8F6E1;transform:scale(0,0)}.face-mor{border-radius:50% 50% 60% 60%}.header{-webkit-transition:1s;transition:1s;position:absolute;top:-375px;left:-335px;width:666px;height:550px;border-radius:50%/63% 63% 37% 37%;z-index:2;background:#E4B790;-webkit-transform:scale(0,0);transform:scale(0,0)}.ear,.ear-hole,.ear-hole-mask,.eye{border-radius:50%}.l-eye-wrap,.r-eye-wrap{-webkit-transition:2s;transition:2s;z-index:14;-webkit-transform:translate(15px,60px);transform:translate(15px,60px)}.eye{-webkit-transition:1s;transition:1s;background:#88282A;width:60px;height:60px;z-index:10}.eye-be{-webkit-transform:rotate(60deg);transform:rotate(60deg)}.eye-af{-webkit-transform:rotate(-60deg);transform:rotate(-60deg)}.l-eye-wrap-mor{-webkit-transform:translate(-115px,-41px);transform:translate(-115px,-41px)}.r-eye-wrap-mor{-webkit-transform:translate(136px,-41px);transform:translate(136px,-41px)}.l-eye-wrap-mor .eye-mor,.r-eye-wrap-mor .eye-mor{width:51px;height:58.75px}.eye-mor .eye-mi{-webkit-animation:gooey-mor-animate 2s ease-in-out .16s forwards;animation:gooey-mor-animate 2s ease-in-out .16s forwards}.eye-mor .eye-be{-webkit-animation:gooey-mor-be-animate 2s ease-in-out forwards;animation:gooey-mor-be-animate 2s ease-in-out forwards}.eye-mor .eye-af{-webkit-animation:gooey-mor-af-animate 2s ease-in-out .32s forwards;animation:gooey-mor-af-animate 2s ease-in-out .32s forwards}.l-eye-face,.r-eye-face{top:-49px;width:135px;height:154px;background:#fff;border-radius:50%;-webkit-transform:scale(0,0);transform:scale(0,0);opacity:1}.l-eye-face{left:-55px}.r-eye-face{left:-29px}.l-ear-wrap,.r-ear-wrap{-webkit-transition:3s;transition:3s;-webkit-transform:translate(5px,5px);transform:translate(5px,5px)}.l-ear-wrap-mor{-webkit-transform:translate(-134px,-301px);transform:translate(-134px,-301px)}.r-ear-wrap-mor{-webkit-transform:translate(78px,-301px);transform:translate(78px,-301px)}.l-ear{-webkit-transform:rotate(49deg);transform:rotate(49deg)}.r-ear{-webkit-transform:rotate(-49deg);transform:rotate(-49deg)}.ear{-webkit-transition:.5s;transition:.5s;width:50px;height:50px;background:#88282A}.ear .l-ear-hole-mor{-webkit-transform:scale(1,1) translate(33px,33px);transform:scale(1,1) translate(33px,33px)}.ear .r-ear-hole-mor{-webkit-transform:scale(1,1) translate(16px,33px);transform:scale(1,1) translate(16px,33px)}.ear-mor{width:110px;height:123px;background:#E4B790}.ear-hole{-webkit-transition:.5s;transition:.5s;-webkit-transition-timing-function:cubic-bezier(.64,.57,.67,1.53);transition-timing-function:cubic-bezier(.64,.57,.67,1.53);width:58px;height:50px;background:#F1D6BB}.ear-hole .l-ear-hole-mor,.ear-hole .r-ear-hole-mor{-webkit-transform:scale(1,1) translate(33px,33px);transform:scale(1,1) translate(33px,33px)}.l-ear-hole{-webkit-transform-origin:140% 50%;transform-origin:140% 50%;-webkit-transform:scale(0,1) translate(33px,33px);transform:scale(0,1) translate(33px,33px)}.r-ear-hole{-webkit-transform-origin:20% 50%;transform-origin:20% 50%;-webkit-transform:scale(0,1) translate(16px,33px);transform:scale(0,1) translate(16px,33px)}.ear-hole-mask{width:21px;height:65px;background:#E4B790;opacity:0}.l-ear-hole-mask{-webkit-transform:translate(77px,-25px);transform:translate(77px,-25px)}.r-ear-hole-mask{-webkit-transform:translate(11px,-25px);transform:translate(11px,-25px)}.show{-webkit-animation:show-animate 2s ease forwards;animation:show-animate 2s ease forwards}.op-show{opacity:1}@-webkit-keyframes gooey-mor-animate{25%{-webkit-transform:scale(.7,1.3);transform:scale(.7,1.3)}50%{-webkit-transform:scale(.7,.7);transform:scale(.7,.7);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:scale(.85,.85);transform:scale(.85,.85)}}@keyframes gooey-mor-animate{25%{-webkit-transform:scale(.7,1.3);transform:scale(.7,1.3)}50%{-webkit-transform:scale(.7,.7);transform:scale(.7,.7);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:scale(.85,.85);transform:scale(.85,.85)}}@-webkit-keyframes gooey-mor-be-animate{30%{-webkit-transform:rotate(-60deg) scale(.7,1.3);transform:rotate(-60deg) scale(.7,1.3)}45%{-webkit-transform:rotate(-60deg) scale(.7,.7);transform:rotate(-60deg) scale(.7,.7);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:rotate(-60deg) scale(.85,.85);transform:rotate(-60deg) scale(.85,.85)}}@keyframes gooey-mor-be-animate{30%{-webkit-transform:rotate(-60deg) scale(.7,1.3);transform:rotate(-60deg) scale(.7,1.3)}45%{-webkit-transform:rotate(-60deg) scale(.7,.7);transform:rotate(-60deg) scale(.7,.7);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:rotate(-60deg) scale(.85,.85);transform:rotate(-60deg) scale(.85,.85)}}@-webkit-keyframes gooey-mor-af-animate{30%{-webkit-transform:rotate(60deg) scale(.7,1.3);transform:rotate(60deg) scale(.7,1.3)}45%{-webkit-transform:rotate(60deg) scale(.9,.9);transform:rotate(60deg) scale(.9,.9);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:rotate(60deg) scale(.85,.85);transform:rotate(60deg) scale(.85,.85)}}@keyframes gooey-mor-af-animate{30%{-webkit-transform:rotate(60deg) scale(.7,1.3);transform:rotate(60deg) scale(.7,1.3)}45%{-webkit-transform:rotate(60deg) scale(.9,.9);transform:rotate(60deg) scale(.9,.9);-webkit-animation-timing-function:cubic-bezier(.64,.57,.67,1.53);animation-timing-function:cubic-bezier(.64,.57,.67,1.53)}100%{-webkit-transform:rotate(60deg) scale(.85,.85);transform:rotate(60deg) scale(.85,.85)}}@-webkit-keyframes show-animate{0%{-webkit-transform:matrix3d(.7,0,0,0,0,.7,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.7,0,0,0,0,.7,0,0,0,0,1,0,0,0,0,1);opacity:0}3.4%{-webkit-transform:matrix3d(.795,0,0,0,0,.822,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.795,0,0,0,0,.822,0,0,0,0,1,0,0,0,0,1)}4.7%{-webkit-transform:matrix3d(.835,0,0,0,0,.88,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.835,0,0,0,0,.88,0,0,0,0,1,0,0,0,0,1)}6.81%{-webkit-transform:matrix3d(.898,0,0,0,0,.968,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.898,0,0,0,0,.968,0,0,0,0,1,0,0,0,0,1)}9.41%{-webkit-transform:matrix3d(.965,0,0,0,0,1.05,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.965,0,0,0,0,1.05,0,0,0,0,1,0,0,0,0,1)}10.21%{-webkit-transform:matrix3d(.982,0,0,0,0,1.068,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.982,0,0,0,0,1.068,0,0,0,0,1,0,0,0,0,1)}13.61%{-webkit-transform:matrix3d(1.037,0,0,0,0,1.1,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.037,0,0,0,0,1.1,0,0,0,0,1,0,0,0,0,1)}14.11%{-webkit-transform:matrix3d(1.042,0,0,0,0,1.099,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.042,0,0,0,0,1.099,0,0,0,0,1,0,0,0,0,1)}17.52%{-webkit-transform:matrix3d(1.062,0,0,0,0,1.072,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.062,0,0,0,0,1.072,0,0,0,0,1,0,0,0,0,1)}18.72%{-webkit-transform:matrix3d(1.064,0,0,0,0,1.056,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.064,0,0,0,0,1.056,0,0,0,0,1,0,0,0,0,1)}21.32%{-webkit-transform:matrix3d(1.059,0,0,0,0,1.021,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.059,0,0,0,0,1.021,0,0,0,0,1,0,0,0,0,1)}24.32%{-webkit-transform:matrix3d(1.045,0,0,0,0,.988,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.045,0,0,0,0,.988,0,0,0,0,1,0,0,0,0,1)}25.23%{-webkit-transform:matrix3d(1.04,0,0,0,0,.981,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.04,0,0,0,0,.981,0,0,0,0,1,0,0,0,0,1)}29.03%{-webkit-transform:matrix3d(1.019,0,0,0,0,.969,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.019,0,0,0,0,.969,0,0,0,0,1,0,0,0,0,1)}29.93%{-webkit-transform:matrix3d(1.014,0,0,0,0,.97,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.014,0,0,0,0,.97,0,0,0,0,1,0,0,0,0,1)}35.54%{-webkit-transform:matrix3d(.994,0,0,0,0,.989,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.994,0,0,0,0,.989,0,0,0,0,1,0,0,0,0,1)}36.74%{-webkit-transform:matrix3d(.991,0,0,0,0,.994,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.991,0,0,0,0,.994,0,0,0,0,1,0,0,0,0,1)}41.04%{-webkit-transform:matrix3d(.988,0,0,0,0,1.007,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.988,0,0,0,0,1.007,0,0,0,0,1,0,0,0,0,1)}44.44%{-webkit-transform:matrix3d(.99,0,0,0,0,1.01,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.99,0,0,0,0,1.01,0,0,0,0,1,0,0,0,0,1)}52.15%{-webkit-transform:matrix3d(.997,0,0,0,0,1.002,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.997,0,0,0,0,1.002,0,0,0,0,1,0,0,0,0,1)}59.86%{-webkit-transform:matrix3d(1.002,0,0,0,0,.997,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.002,0,0,0,0,.997,0,0,0,0,1,0,0,0,0,1)}63.26%{-webkit-transform:matrix3d(1.002,0,0,0,0,.998,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.002,0,0,0,0,.998,0,0,0,0,1,0,0,0,0,1)}75.28%{-webkit-transform:matrix3d(1,0,0,0,0,1.001,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1,0,0,0,0,1.001,0,0,0,0,1,0,0,0,0,1)}100%,85.49%,90.69%{-webkit-transform:matrix3d(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1)}100%{opacity:1}}@keyframes show-animate{0%{-webkit-transform:matrix3d(.7,0,0,0,0,.7,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.7,0,0,0,0,.7,0,0,0,0,1,0,0,0,0,1);opacity:0}3.4%{-webkit-transform:matrix3d(.795,0,0,0,0,.822,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.795,0,0,0,0,.822,0,0,0,0,1,0,0,0,0,1)}4.7%{-webkit-transform:matrix3d(.835,0,0,0,0,.88,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.835,0,0,0,0,.88,0,0,0,0,1,0,0,0,0,1)}6.81%{-webkit-transform:matrix3d(.898,0,0,0,0,.968,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.898,0,0,0,0,.968,0,0,0,0,1,0,0,0,0,1)}9.41%{-webkit-transform:matrix3d(.965,0,0,0,0,1.05,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.965,0,0,0,0,1.05,0,0,0,0,1,0,0,0,0,1)}10.21%{-webkit-transform:matrix3d(.982,0,0,0,0,1.068,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.982,0,0,0,0,1.068,0,0,0,0,1,0,0,0,0,1)}13.61%{-webkit-transform:matrix3d(1.037,0,0,0,0,1.1,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.037,0,0,0,0,1.1,0,0,0,0,1,0,0,0,0,1)}14.11%{-webkit-transform:matrix3d(1.042,0,0,0,0,1.099,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.042,0,0,0,0,1.099,0,0,0,0,1,0,0,0,0,1)}17.52%{-webkit-transform:matrix3d(1.062,0,0,0,0,1.072,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.062,0,0,0,0,1.072,0,0,0,0,1,0,0,0,0,1)}18.72%{-webkit-transform:matrix3d(1.064,0,0,0,0,1.056,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.064,0,0,0,0,1.056,0,0,0,0,1,0,0,0,0,1)}21.32%{-webkit-transform:matrix3d(1.059,0,0,0,0,1.021,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.059,0,0,0,0,1.021,0,0,0,0,1,0,0,0,0,1)}24.32%{-webkit-transform:matrix3d(1.045,0,0,0,0,.988,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.045,0,0,0,0,.988,0,0,0,0,1,0,0,0,0,1)}25.23%{-webkit-transform:matrix3d(1.04,0,0,0,0,.981,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.04,0,0,0,0,.981,0,0,0,0,1,0,0,0,0,1)}29.03%{-webkit-transform:matrix3d(1.019,0,0,0,0,.969,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.019,0,0,0,0,.969,0,0,0,0,1,0,0,0,0,1)}29.93%{-webkit-transform:matrix3d(1.014,0,0,0,0,.97,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.014,0,0,0,0,.97,0,0,0,0,1,0,0,0,0,1)}35.54%{-webkit-transform:matrix3d(.994,0,0,0,0,.989,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.994,0,0,0,0,.989,0,0,0,0,1,0,0,0,0,1)}36.74%{-webkit-transform:matrix3d(.991,0,0,0,0,.994,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.991,0,0,0,0,.994,0,0,0,0,1,0,0,0,0,1)}41.04%{-webkit-transform:matrix3d(.988,0,0,0,0,1.007,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.988,0,0,0,0,1.007,0,0,0,0,1,0,0,0,0,1)}44.44%{-webkit-transform:matrix3d(.99,0,0,0,0,1.01,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.99,0,0,0,0,1.01,0,0,0,0,1,0,0,0,0,1)}52.15%{-webkit-transform:matrix3d(.997,0,0,0,0,1.002,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(.997,0,0,0,0,1.002,0,0,0,0,1,0,0,0,0,1)}59.86%{-webkit-transform:matrix3d(1.002,0,0,0,0,.997,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.002,0,0,0,0,.997,0,0,0,0,1,0,0,0,0,1)}63.26%{-webkit-transform:matrix3d(1.002,0,0,0,0,.998,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1.002,0,0,0,0,.998,0,0,0,0,1,0,0,0,0,1)}75.28%{-webkit-transform:matrix3d(1,0,0,0,0,1.001,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1,0,0,0,0,1.001,0,0,0,0,1,0,0,0,0,1)}100%,85.49%,90.69%{-webkit-transform:matrix3d(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);transform:matrix3d(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1)}100%{opacity:1}}
!

JS 

              
                console.log('%c/**\n* Baidu Bear\n* Long may the sun shine :)\n*\n* @author Owen\n* @email  [email protected]\n* @github github/numerhero\n* @date   2017-02-09\n*/', 'color: #E74C3C; font-size: 16px; font-weight: 600');

+function () {
  let oNose = $('.nose');
  let oHeader = $('.header');
  let oFace = $('.face');
  let oLeyeWrap = $('.l-eye-wrap');
  let oLeyeFace = $('.l-eye-face', oLeyeWrap);
  let oReyeWrap = $('.r-eye-wrap');
  let oReyeFace = $('.r-eye-face', oReyeWrap);
  let oLearWrap = $('.l-ear-wrap');
  let oRearWrap = $('.r-ear-wrap');
  let oLear     = $('.l-ear');
  let oRear     = $('.r-ear');
  let oLearHole = $('.l-ear-hole');
  let oRearHole = $('.r-ear-hole');
  let oMasks    = $$('.ear-hole-mask');
  let oEyes     = $$('.eye');
  let oEars     = $$('.ear');
  let oEarHole  = $$('.ear-hole');

  let process = Promise.resolve();

  process.then(() => {
    // 鼻子先显现出来
    oNose.classList.add('show');
    return Sleep(600); // 600ms 后进行第二步操作
  })
    .then(() => {
    // 熊嘴脸显现出来
    oFace.classList.add('show');
    return Sleep(600); // 600ms 后进行第三步操作
  })
    .then(() => {
    // 嘴脸略微变化，同时头部显现
    oFace.classList.add('face-mor');
    oHeader.classList.add('show');
    return Sleep(600); // 600ms 后进行第四步操作
  })
    .then(() => {
    // 鼻子动画开始动，同时两眼分别从两个方向移动
    oNose.classList.add('nose-mor');
    oLeyeWrap.classList.add('l-eye-wrap-mor');
    oReyeWrap.classList.add('r-eye-wrap-mor');
    return Sleep(300); // 300ms 后进行第五步操作
  })
    .then(() => {
    // 鼻子运动为最终形态
    oNose.classList.add('nose-end');
    return Sleep(900); // 900ms 后进行第六步操作
  })
    .then(() => {
    // 两只眼睛开始运动
    oLeyeWrap.classList.add('eye-mor');
    oReyeWrap.classList.add('eye-mor');
    return Sleep(600); // 600ms 后进行第七步操作
  })
    .then(() => {
    // 两只耳朵开始从眼睛中移动出来
    oLearWrap.classList.add('l-ear-wrap-mor');
    oRearWrap.classList.add('r-ear-wrap-mor');
    return Sleep(1000); // 1000ms 后进行第八步操作
  })
    .then(() => {
    // 两只耳朵开始形变
    oLear.classList.add('ear-mor');
    oRear.classList.add('ear-mor');
    return Sleep(1800); // 1800ms 后进行第九步操作
  })
    .then(() => {
    // 让耳洞部分的遮挡物显现
    [].forEach.call(oMasks, (t) => t.classList.add('op-show'));
    return Sleep(100); // 100ms 后进行第十步操作
  })
    .then(() => {
    // 两只眼脸和耳洞同时变化
    oLeyeFace.classList.add('show');
    oReyeFace.classList.add('show');
    oLearHole.classList.add('l-ear-hole-mor');
    oRearHole.classList.add('r-ear-hole-mor');
    return Sleep(800); // 800ms 后进行第三步操作
  })
    .then(() => {
    // 运动完毕，将所有的transition 清除，保证缩放的时候不会露馅儿~
    [].forEach.call(oEyes, (t) => {
      t.style.transition = '0s';
    });

    [].forEach.call(oEars, (t) => {
      t.style.transition = '0s';
    });

    [].forEach.call(oEarHole, (t) => {
      t.style.transition = '0s';
    })

    oLeyeWrap.style.transition = '0s';
    oReyeWrap.style.transition = '0s';
    oFace.style.transition = '0s';
    oLearWrap.style.transition = '0s';
    oRearWrap.style.transition = '0s';
  })
}()

function $(v,d) {
  d = d || document;
  return d.querySelector(v);
}

function $$(v,d) {
  d = d || document;
  return d.querySelectorAll(v);
}

function Sleep(timeout) {
  return new Promise(function(resolve) {
    setTimeout(function () {
      resolve();
    },timeout);
  });
}
!
999px

Console