Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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.

+ add another resource

JavaScript

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.

+ 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.

Behavior

Save Automatically?

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

              
                .card.visa
  input.cardnumber#number[placeholder="---- ---- ---- ----"]
  label.expires[for="expiration-date"] Good Thru
  input.expiration-date#expiration-date[placeholder="00/00"]
  input#cardholder[placeholder="John Doe"]

.card.amex
  input.cardnumber#number[placeholder="---- ---- ---- ----"]
  label.expires[for="expiration-date"] Good Thru
  input.expiration-date#expiration-date[placeholder="00/00"]
  input#cardholder[placeholder="John Doe"]

.card.master-card
  input.cardnumber#number[placeholder="---- ---- ---- ----"]
  label.expires[for="expiration-date"] Good Thru
  input.expiration-date#expiration-date[placeholder="00/00"]
  input#cardholder[placeholder="John Doe"]

.card
  input.cardnumber#number[placeholder="---- ---- ---- ----"]
  label.expires[for="expiration-date"] Good Thru
  input.expiration-date#expiration-date[placeholder="00/00"]
  input#cardholder[placeholder="John Doe"]
              
            
!

CSS

              
                $colors = generic #424242,
          visa #00A6EA,
          amex #78DD30,
          master-card #F26F6D

$color(name)
  for $n in (0..length($colors) - 1)
    $c = $colors[$n]
    if name == $c[0]
      return $c[1]

body
  margin 0
  text-align center
  background #eee
  font-family 'Share Tech Mono'

.card
  width 10em
  height 6.5em
  margin 1em .5em 0 .5em
  display inline-block !important
  position relative
  display block
  font-size 32px
  color white
  box-shadow 0 1px 8px rgba(0,0,0,.2)
  border-radius .25em
  background-color $color(generic)
  background-position center, bottom .5em right .5em
  background-size cover, 4em auto
  background-repeat no-repeat
  background-image linear-gradient(-45deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,0.1) 50%, rgba(white,0.1) 5.00000001%, rgba(white,0) 100%)
  transition all .2s
  &:hover
    box-shadow 0 1px 16px rgba(0,0,0,.25)
  &:last-child
    margin-bottom 1em
  &.visa
    background-color $color(visa)
    background-image linear-gradient(-45deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,0.1) 50%, rgba(white,0.1) 5.00000001%, rgba(white,0) 100%), url('data:image/png;base64,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')
  &.amex
    background-color $color(amex)
    background-image linear-gradient(-45deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,0.1) 50%, rgba(white,0.1) 5.00000001%, rgba(white,0) 100%), url('data:image/png;base64,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')
  &.master-card
    //http://www.hostingreviewslist.com/ipage-ftp-connectionupload-guide-2/
    background-color $color(master-card)
    background-image linear-gradient(-45deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,0.1) 50%, rgba(white,0.1) 5.00000001%, rgba(white,0) 100%), url('data:image/png;base64,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')
  input
    font-size .5em
    font-family 'Share Tech Mono'
    background rgba(0,0,0,.1)
    border 0
    outline 0
    color white
    position absolute
    transform translate(-50%, 0)
    text-align center
    &::-webkit-input-placeholder
      color rgba(white, .75)
  #number
    font-size .8em
    top 50%
    left 50%
  #expiration-date
    width 3.5em
    bottom 3em
    right 7.5em
  #cardholder
    width 9.5em
    bottom 1em
    left 6em
    text-align left
  label
    font-size .25em
    position absolute
  .expires
    width 1em
    bottom 6em
    left 12em
              
            
!

JS

              
                /*
The MIT License (MIT) Copyright (c) 2013 First Opinion

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
{
  !function(a,b){"function"==typeof define&&define.amd?define([],function(){return a.returnExportsGlobal=b()}):"object"==typeof exports?module.exports=b():a.Formatter=b()}(this,function(){var a=function(){var a={},b=4,c=new RegExp("{{([^}]+)}}","g"),d=function(a){for(var b,d=[];b=c.exec(a);)d.push(b);return d};return a.parse=function(a){var c={inpts:{},chars:{}},e=d(a),f=a.length,g=0,h=0,i=0,j=function(a){for(var d=a.length,e=0;d>e;e++)c.inpts[h]=a.charAt(e),h++;g++,i+=a.length+b-1};for(i;f>i;i++)g<e.length&&i===e[g].index?j(e[g][1]):c.chars[i-g*b]=a.charAt(i);return c.mLength=i-g*b,c},a}(),b=function(){{var a={};"undefined"!=typeof navigator?navigator.userAgent:null}return a.extend=function(a){for(var b=1;b<arguments.length;b++)for(var c in arguments[b])a[c]=arguments[b][c];return a},a.addChars=function(a,b,c){return a.substr(0,c)+b+a.substr(c,a.length)},a.removeChars=function(a,b,c){return a.substr(0,b)+a.substr(c,a.length)},a.isBetween=function(a,b){return b.sort(function(a,b){return a-b}),a>b[0]&&a<b[1]},a.addListener=function(a,b,c){return"undefined"!=typeof a.addEventListener?a.addEventListener(b,c,!1):a.attachEvent("on"+b,c)},a.preventDefault=function(a){return a.preventDefault?a.preventDefault():a.returnValue=!1},a.getClip=function(a){return a.clipboardData?a.clipboardData.getData("Text"):window.clipboardData?window.clipboardData.getData("Text"):void 0},a.getMatchingKey=function(a,b,c){for(var d in c){var e=c[d];if(a===e.which&&b===e.keyCode)return d}},a.isDelKeyDown=function(b,c){var d={backspace:{which:8,keyCode:8},"delete":{which:46,keyCode:46}};return a.getMatchingKey(b,c,d)},a.isDelKeyPress=function(b,c){var d={backspace:{which:8,keyCode:8,shiftKey:!1},"delete":{which:0,keyCode:46}};return a.getMatchingKey(b,c,d)},a.isSpecialKeyPress=function(b,c){var d={tab:{which:0,keyCode:9},enter:{which:13,keyCode:13},end:{which:0,keyCode:35},home:{which:0,keyCode:36},leftarrow:{which:0,keyCode:37},uparrow:{which:0,keyCode:38},rightarrow:{which:0,keyCode:39},downarrow:{which:0,keyCode:40},F5:{which:116,keyCode:116}};return a.getMatchingKey(b,c,d)},a.isModifier=function(a){return a.ctrlKey||a.altKey||a.metaKey},a.forEach=function(a,b,c){if(a.hasOwnProperty("length"))for(var d=0,e=a.length;e>d&&b.call(c,a[d],d,a)!==!1;d++);else for(var f in a)if(a.hasOwnProperty(f)&&b.call(c,a[f],f,a)===!1)break},a}(),c=function(a,b){function c(c){var e=[],f=[];b.forEach(c,function(c){b.forEach(c,function(b,c){var g=a.parse(b),h=d(c);return e.push(h),f.push(g),!1})});var g=function(a){var c;return b.forEach(e,function(b,d){return b.test(a)?(c=d,!1):void 0}),void 0===c?null:f[c]};return{getPattern:g,patterns:f,matchers:e}}var d=function(a){return"*"===a?/.*/:new RegExp(a)};return c}(a,b),d=function(){var a={};return a.get=function(a){if("number"==typeof a.selectionStart)return{begin:a.selectionStart,end:a.selectionEnd};var b=document.selection.createRange();if(b&&b.parentElement()===a){var c=a.createTextRange(),d=a.createTextRange(),e=a.value.length;return c.moveToBookmark(b.getBookmark()),d.collapse(!1),c.compareEndPoints("StartToEnd",d)>-1?{begin:e,end:e}:{begin:-c.moveStart("character",-e),end:-c.moveEnd("character",-e)}}return{begin:0,end:0}},a.set=function(a,b){if("object"!=typeof b&&(b={begin:b,end:b}),a.setSelectionRange)a.focus(),a.setSelectionRange(b.begin,b.end);else if(a.createTextRange){var c=a.createTextRange();c.collapse(!0),c.moveEnd("character",b.end),c.moveStart("character",b.begin),c.select()}},a}(),e=function(a,b,c){function d(b,d){var f=this;if(f.el=b,!f.el)throw new TypeError("Must provide an existing element");if(f.opts=c.extend({},e,d),"undefined"!=typeof f.opts.pattern&&(f.opts.patterns=f._specFromSinglePattern(f.opts.pattern),delete f.opts.pattern),"undefined"==typeof f.opts.patterns)throw new TypeError("Must provide a pattern or array of patterns");f.patternMatcher=a(f.opts.patterns),f._updatePattern(),f.hldrs={},f.focus=0,c.addListener(f.el,"keydown",function(a){f._keyDown(a)}),c.addListener(f.el,"keypress",function(a){f._keyPress(a)}),c.addListener(f.el,"paste",function(a){f._paste(a)}),f.opts.persistent&&(f._processKey("",!1),f.el.blur(),c.addListener(f.el,"focus",function(a){f._focus(a)}),c.addListener(f.el,"click",function(a){f._focus(a)}),c.addListener(f.el,"touchstart",function(a){f._focus(a)}))}var e={persistent:!1,repeat:!1,placeholder:" "},f={9:/[0-9]/,a:/[A-Za-z]/,"*":/[A-Za-z0-9]/};return d.addInptType=function(a,b){f[a]=b},d.prototype.resetPattern=function(c){this.opts.patterns=c?this._specFromSinglePattern(c):this.opts.patterns,this.sel=b.get(this.el),this.val=this.el.value,this.delta=0,this._removeChars(),this.patternMatcher=a(this.opts.patterns);var d=this.patternMatcher.getPattern(this.val);this.mLength=d.mLength,this.chars=d.chars,this.inpts=d.inpts,this._processKey("",!1,!0)},d.prototype._updatePattern=function(){var a=this.patternMatcher.getPattern(this.val);a&&(this.mLength=a.mLength,this.chars=a.chars,this.inpts=a.inpts)},d.prototype._keyDown=function(a){var b=a.which||a.keyCode;return b&&c.isDelKeyDown(a.which,a.keyCode)?(this._processKey(null,b),c.preventDefault(a)):void 0},d.prototype._keyPress=function(a){var b,d;return b=a.which||a.keyCode,d=c.isSpecialKeyPress(a.which,a.keyCode),c.isDelKeyPress(a.which,a.keyCode)||d||c.isModifier(a)?void 0:(this._processKey(String.fromCharCode(b),!1),c.preventDefault(a))},d.prototype._paste=function(a){return this._processKey(c.getClip(a),!1),c.preventDefault(a)},d.prototype._focus=function(){var a=this;setTimeout(function(){var c=b.get(a.el),d=c.end>a.focus,e=0===c.end;(d||e)&&b.set(a.el,a.focus)},0)},d.prototype._processKey=function(a,d,e){if(this.sel=b.get(this.el),this.val=this.el.value,this.delta=0,this.sel.begin!==this.sel.end)this.delta=-1*Math.abs(this.sel.begin-this.sel.end),this.val=c.removeChars(this.val,this.sel.begin,this.sel.end);else if(d&&46===d)this._delete();else if(d&&this.sel.begin-1>=0)this.val=c.removeChars(this.val,this.sel.end-1,this.sel.end),this.delta-=1;else if(d)return!0;d||(this.val=c.addChars(this.val,a,this.sel.begin),this.delta+=a.length),this._formatValue(e)},d.prototype._delete=function(){for(;this.chars[this.sel.begin];)this._nextPos();this.sel.begin<this.val.length&&(this._nextPos(),this.val=c.removeChars(this.val,this.sel.end-1,this.sel.end),this.delta=-1)},d.prototype._nextPos=function(){this.sel.end++,this.sel.begin++},d.prototype._formatValue=function(a){this.newPos=this.sel.end+this.delta,this._removeChars(),this._updatePattern(),this._validateInpts(),this._addChars(),this.el.value=this.val.substr(0,this.mLength),("undefined"==typeof a||a===!1)&&b.set(this.el,this.newPos)},d.prototype._removeChars=function(){this.sel.end>this.focus&&(this.delta+=this.sel.end-this.focus);for(var a=0,b=0;b<=this.mLength;b++){var d,e=this.chars[b],f=this.hldrs[b],g=b+a;g=b>=this.sel.begin?g+this.delta:g,d=this.val.charAt(g),(e&&e===d||f&&f===d)&&(this.val=c.removeChars(this.val,g,g+1),a--)}this.hldrs={},this.focus=this.val.length},d.prototype._validateInpts=function(){for(var a=0;a<this.val.length;a++){var b=this.inpts[a],d=!f[b],e=!d&&!f[b].test(this.val.charAt(a)),g=this.inpts[a];(d||e)&&g&&(this.val=c.removeChars(this.val,a,a+1),this.focusStart--,this.newPos--,this.delta--,a--)}},d.prototype._addChars=function(){if(this.opts.persistent){for(var a=0;a<=this.mLength;a++)this.val.charAt(a)||(this.val=c.addChars(this.val,this.opts.placeholder,a),this.hldrs[a]=this.opts.placeholder),this._addChar(a);for(;this.chars[this.focus];)this.focus++}else for(var b=0;b<=this.val.length;b++){if(this.delta<=0&&b===this.focus)return!0;this._addChar(b)}},d.prototype._addChar=function(a){var b=this.chars[a];return b?(c.isBetween(a,[this.sel.begin-1,this.newPos+1])&&(this.newPos++,this.delta++),a<=this.focus&&this.focus++,this.hldrs[a]&&(delete this.hldrs[a],this.hldrs[a+1]=this.opts.placeholder),void(this.val=c.addChars(this.val,b,a))):!0},d.prototype._specFromSinglePattern=function(a){return[{"*":a}]},d}(c,d,b);return e});
}





var inputCardNumber = document.getElementsByClassName('cardnumber');
var inputExpirationDate = document.getElementsByClassName('expiration-date');

for(var i=0; i<inputCardNumber.length; i++) {
  new Formatter(inputCardNumber[i], {
    'pattern': '{{9999}}\ {{9999}}\ {{9999}}\ {{9999}}'
  });
}

for(var i=0; i<inputExpirationDate.length; i++) {
  new Formatter(inputExpirationDate[i], {
    'pattern': '{{99}}\/{{99}}'
  });
}
              
            
!
999px

Console