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HTML 

              
                main
  h1 Checkout
  p Select one of these payment methods
  .alternate-payment
    button.btn.btn-paypal(type='button') Paypal
    button.btn.btn-coinbase(type='button') Coinbase
  p Or enter your credit card information
  form.ccjs-card
    .row
      fieldset.number
        label.ccjs-number
          | Card Number
          input.ccjs-number(name='cc-number', placeholder='•••• •••• •••• ••••')
      fieldset.security
        label.ccjs-csc
          | Security Code
          input.ccjs-csc(name='csc', placeholder='•••')
    .row
      fieldset.name
        label.ccjs-name
          | Cardholder's Name
          input.ccjs-name(name='cc-name', placeholder='John Dough')
      fieldset.ccjs-expiration
        legend.expiration Expiration
        .row
          select.ccjs-month(name='month')
            option(selected='', disabled='') MM
            option(value='01') 01
            option(value='02') 02
            option(value='03') 03
            option(value='04') 04
            option(value='05') 05
            option(value='06') 06
            option(value='07') 07
            option(value='08') 08
            option(value='09') 09
            option(value='10') 10
            option(value='11') 11
            option(value='12') 12
          select.ccjs-year(name='year')
            option(selected='', disabled='') YY
            option(value='15') 15
            option(value='16') 16
            option(value='17') 17
            option(value='18') 18
            option(value='19') 19
            option(value='20') 20
            option(value='21') 21
            option(value='22') 22
            option(value='23') 23
            option(value='24') 24
            option(value='25') 25
    select.ccjs-hidden-card-type(name='card-type')
      option.ccjs-amex(value='amex') American Express
      option.ccjs-discover(value='discover') Discover
      option.ccjs-mastercard(value='mastercard') MasterCard
      option.ccjs-visa(value='visa') Visa
      option.ccjs-diners-club(value='diners-club') Diners Club
      option.ccjs-jcb(value='jcb') JCB
  button.btn.btn-primary(type='button') Checkout
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Lato:300);

@import url('https://fonts.googleapis.com/css?family=IBM+Plex+Mono');

$mono: 'IBM Plex Mono', monspace;

html {
  font-family: 'Lato';
}

body {
  color: #DBE6EC;
  background: #22394C url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/14625/blue_@2X.jpg');
  background-size: 33%;
  font-family: inherit;
}

p {
  font-size: 1.2rem;  
  font-weight: 300;
}

h1 {
  color: #F4FBFE;
  font-weight: 100;
  margin-bottom: 0.25em;
}

main {
  max-width: 30em;
  margin: 2em auto 0;
  display: flex;
  flex-direction: column;
}

input, select {
  color: #BCCFE4;
}
/* Creditcard.js v0.10.12 | Copyright (c) 2014 Creditcard.js | creditcardjs.com/licensing */

.ccjs-card input::-webkit-input-placeholder,
.ccjs-card-style input::-webkit-input-placeholder,
.ccjs-card select::-webkit-input-placeholder,
.ccjs-card-style select::-webkit-input-placeholder
{
    //letter-spacing: .15em;
    color: #22394C;
}
.ccjs-card input:-moz-placeholder,
.ccjs-card-style input:-moz-placeholder {
    //letter-spacing: .15em;
    color: #22394C;
    line-height: 1.75;
}
.ccjs-card input::-moz-placeholder,
.ccjs-card-style input::-moz-placeholder {
    //letter-spacing: .15em;
    color: #22394C;
    line-height: 1.75;
}
.ccjs-card div,
.ccjs-card-style div {
    margin: 0;
    padding: 0;
}
.ccjs-card input,
.ccjs-card-style input,
.ccjs-card select,
.ccjs-card-style select,
.ccjs-card label,
.ccjs-card-style label,
.ccjs-card fieldset,
.ccjs-card-style fieldset,
.ccjs-card legend,
.ccjs-card-style legend,
.ccjs-card button,
.ccjs-card-style button {
    position: relative;
    padding: 0;
    margin: 0;
    display: block;
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    -ms-box-sizing: content-box;
    box-sizing: content-box;
    font-family: inherit;
    font-weight: 400;
    font-style: normal;
    font-size: 1em;
    z-index: 2;
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    border-radius: 0;
}
.ccjs-card fieldset,
.ccjs-card-style fieldset {
    border: 0;
}
.ccjs-card label,
.ccjs-card-style label,
.ccjs-card legend,
.ccjs-card-style legend,
.ccjs-card fieldset,
.ccjs-card-style fieldset {
    line-height: 1.5em;
    //height: 1.5em;
    color: #BBCEE4;
    border: 0;
}
.ccjs-card input,
.ccjs-card-style input,
.ccjs-card select,
.ccjs-card-style select,
.ccjs-card button,
.ccjs-card-style button {
    border: 1px solid #22394C;
}
.ccjs-card input:focus,
.ccjs-card-style input:focus,
.ccjs-card select:focus,
.ccjs-card-style select:focus,
.ccjs-card button:focus,
.ccjs-card-style button:focus {
    outline: 0;
    border: 1px solid #4D8CBD;
}
.ccjs-card input,
.ccjs-card-style input,
.ccjs-card select,
.ccjs-card-style select {
    background-color: #11202C;
    //color: #22394C;
    font-size: 1.25em;
    line-height: 1;
    border-radius: 0;
    //height: 2em;
}
.ccjs-card input,
.ccjs-card-style input {
    //padding-left: .25em;
    //line-height: 2em\9;
}
.ccjs-card input::-ms-clear,
.ccjs-card-style input::-ms-clear {
    display: none;
}
.ccjs-card select,
.ccjs-card-style select {
    //color: #767f86;
    //height: 1.5em\9;
    //padding: .25em 0\9;
}
.ccjs-card input::-webkit-autofill,
.ccjs-card-style input::-webkit-autofill {
    -webkit-box-shadow: 0 0 0 1000px #fff inset;
    box-shadow: 0 0 0 1000px #fff inset;
}
.ccjs-card .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-amex {
    opacity: 0;
    filter: alpha(opacity=0);
    visibility: hidden;
    -webkit-transition: opacity .3s 0s, visibility 0s .3s;
    -moz-transition: opacity .3s 0s, visibility 0s .3s;
    -o-transition: opacity .3s 0s, visibility 0s .3s;
    transition: opacity .3s 0s, visibility 0s .3s;
    z-index: 1;
    font-size: .6875em;
    background-color: #fafafa;
    position: absolute;
    left: 100%;
    margin-left: 1em;
    -webkit-box-shadow: 0 2px 3px rgba(0, 0, 0, .05);
    -moz-box-shadow: 0 2px 3px rgba(0, 0, 0, .05);
    box-shadow: 0 2px 3px rgba(0, 0, 0, .05);
    color: #767f86;
    z-index: 1000000;
}
.ccjs-card .ccjs-csc-diagram .ccjs-card-code,
.ccjs-card-style .ccjs-csc-diagram .ccjs-card-code,
.ccjs-card .ccjs-csc-diagram-amex .ccjs-card-code,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-card-code {
    color: #78d216;
}
.ccjs-card .ccjs-csc-diagram .ccjs-explanation,
.ccjs-card-style .ccjs-csc-diagram .ccjs-explanation,
.ccjs-card .ccjs-csc-diagram-amex .ccjs-explanation,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-explanation {
    padding: .5em;
    font-size: 1.2em;
}
.ccjs-card .ccjs-csc-diagram .ccjs-close,
.ccjs-card-style .ccjs-csc-diagram .ccjs-close,
.ccjs-card .ccjs-csc-diagram-amex .ccjs-close,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-close {
    color: rgba(0, 0, 0, .4);
    font-size: 2.25em;
    top: 0;
    left: 100%;
    width: .9em;
    margin-left: -.45em;
    margin-top: -.45em;
    height: .9em;
    line-height: .9em;
    background: #fff;
    -webkit-border-radius: .2em;
    -moz-border-radius: .2em;
    border-radius: .2em;
    border: 0;
    position: absolute;
    -webkit-box-shadow: 0 0 0 3px rgba(0, 0, 0, .2);
    -moz-box-shadow: 0 0 0 3px rgba(0, 0, 0, .2);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, .2);
}
.ccjs-card .ccjs-csc-diagram .ccjs-close:hover,
.ccjs-card-style .ccjs-csc-diagram .ccjs-close:hover,
.ccjs-card .ccjs-csc-diagram-amex .ccjs-close:hover,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-close:hover {
    cursor: pointer;
}
.ccjs-card .ccjs-csc-diagram .ccjs-close:active,
.ccjs-card-style .ccjs-csc-diagram .ccjs-close:active,
.ccjs-card .ccjs-csc-diagram-amex .ccjs-close:active,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-close:active {
    background: #e6e6e6;
}
.ccjs-card .ccjs-csc-diagram-amex .ccjs-close,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-close {
    display: none;
}
.ccjs-card .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram {
    bottom: 52%;
}
.ccjs-card .ccjs-csc-diagram .ccjs-barcode,
.ccjs-card-style .ccjs-csc-diagram .ccjs-barcode {
    height: 2em;
    width: 100%;
    background-color: #5e656b;
    margin-top: 2em;
}
.ccjs-card .ccjs-csc-diagram .ccjs-signature,
.ccjs-card-style .ccjs-csc-diagram .ccjs-signature {
    background-color: #fafafa;
    display: inline-block;
    padding: .5em;
    margin-top: 1em;
    margin-left: 1em;
}
.ccjs-card .ccjs-csc-diagram .ccjs-card-code,
.ccjs-card-style .ccjs-csc-diagram .ccjs-card-code {
    padding: .5em 1em;
    display: inline-block;
    background-color: #fff;
}
.ccjs-card .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-amex {
    top: 52%;
}
.ccjs-card .ccjs-csc-diagram-amex .ccjs-card-number,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-card-number {
    margin-top: 3.85em;
    text-align: center;
    width: 100%;
    font-size: 1.5em;
    letter-spacing: .15em;
}
.ccjs-card .ccjs-csc-diagram-amex .ccjs-card-code,
.ccjs-card-style .ccjs-csc-diagram-amex .ccjs-card-code {
    position: absolute;
    top: 0;
    margin-top: 4.8125em;
    margin-right: 3em;
    right: 0;
}
.ccjs-card label.ccjs-csc,
.ccjs-card-style label.ccjs-csc {
    //position: absolute;
    //right: 1.5em;
    //top: 2.25em;
    //text-align: right;
    //z-index: 3;
    //width: 7.5em;
    white-space: nowrap;
}
.ccjs-card label.ccjs-csc input,
.ccjs-card-style label.ccjs-csc input {
    //right: 1.2em;
    //top: 1.2em;
    //position: absolute;
    //width: 2.95em;
}
.ccjs-card .ccjs-csc-diagram-wrapper.ccjs-active .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram-wrapper.ccjs-active .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-wrapper.ccjs-active .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-wrapper.ccjs-active .ccjs-csc-diagram-amex {
    opacity: 1;
    filter: alpha(opacity=100);
    visibility: visible;
    -webkit-transition: opacity .3s 0s, visibility 0s 0s;
    -moz-transition: opacity .3s 0s, visibility 0s 0s;
    -o-transition: opacity .3s 0s, visibility 0s 0s;
    transition: opacity .3s 0s, visibility 0s 0s;
}
.ccjs-card button.ccjs-csc-help,
.ccjs-card-style button.ccjs-csc-help,
.ccjs-card label.ccjs-csc-help,
.ccjs-card-style label.ccjs-csc-help {
    //display: block;
    font-size: 1em;
    background-color: #f2f2f2;
    color: #5e656b;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    width: 1.5em;
    //height: 2.5em;
    line-height: 2.5em;
    //*height: 2.6em;
    text-align: center;
    //position: absolute;
    //right: 1.5em;
    //top: 3.75em;
}
.ccjs-card button.ccjs-csc-help:focus,
.ccjs-card-style button.ccjs-csc-help:focus,
.ccjs-card label.ccjs-csc-help:focus,
.ccjs-card-style label.ccjs-csc-help:focus {
    z-index: 4;
}
.ccjs-card button.ccjs-csc-help:active,
.ccjs-card-style button.ccjs-csc-help:active,
.ccjs-card label.ccjs-csc-help:active,
.ccjs-card-style label.ccjs-csc-help:active,
.ccjs-card button.ccjs-csc-help.ccjs-active,
.ccjs-card-style button.ccjs-csc-help.ccjs-active,
.ccjs-card label.ccjs-csc-help.ccjs-active,
.ccjs-card-style label.ccjs-csc-help.ccjs-active {
    background-color: #e6e6e6;
    background-image: -moz-linear-gradient(top, #e6e6e6, #f2f2f2);
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#e6e6e6), to(#f2f2f2));
    background-image: -webkit-linear-gradient(top, #e6e6e6, #f2f2f2);
    background-image: -o-linear-gradient(top, #e6e6e6, #f2f2f2);
    background-image: linear-gradient(to bottom, #e6e6e6, #f2f2f2);
    background-repeat: repeat-x;
    -webkit-box-shadow: inset 0 2px 3px #ccc;
    -moz-box-shadow: inset 0 2px 3px #ccc;
    box-shadow: inset 0 2px 3px #ccc;
}
.ccjs-card button.ccjs-csc-help:active:after,
.ccjs-card-style button.ccjs-csc-help:active:after,
.ccjs-card label.ccjs-csc-help:active:after,
.ccjs-card-style label.ccjs-csc-help:active:after,
.ccjs-card button.ccjs-csc-help.ccjs-active:after,
.ccjs-card-style button.ccjs-csc-help.ccjs-active:after,
.ccjs-card label.ccjs-csc-help.ccjs-active:after,
.ccjs-card-style label.ccjs-csc-help.ccjs-active:after {
    display: block;
}
.ccjs-card button.ccjs-csc-help:hover,
.ccjs-card-style button.ccjs-csc-help:hover,
.ccjs-card label.ccjs-csc-help:hover,
.ccjs-card-style label.ccjs-csc-help:hover {
    cursor: pointer;
}
.ccjs-card.ccjs-card-type-set .ccjs-csc-diagram,
.ccjs-card-style.ccjs-card-type-set .ccjs-csc-diagram {
    display: block;
    top: 3.18181818em;
}
.ccjs-card.ccjs-card-type-set .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-card-type-set .ccjs-csc-diagram-amex {
    display: none;
}
.ccjs-card.ccjs-amex .ccjs-csc-diagram,
.ccjs-card-style.ccjs-amex .ccjs-csc-diagram {
    display: none;
}
.ccjs-card.ccjs-amex .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-amex .ccjs-csc-diagram-amex {
    display: block;
    top: 3.18181818em;
}
.ccjs-card.ccjs-amex .ccjs-csc-diagram-amex .ccjs-close,
.ccjs-card-style.ccjs-amex .ccjs-csc-diagram-amex .ccjs-close {
    display: block;
}
@media(max-width:57.2em){.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram-amex {
    margin-left: 0;
    right: 0;
    left: auto;
}
.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram-amex {
    top: 100%;
    margin-top: 1em;
}
.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled) .ccjs-csc-diagram {
    top: auto;
    bottom: 100%;
    margin-bottom: 1em;
}
.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled).ccjs-card-type-set .ccjs-csc-diagram,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled).ccjs-card-type-set .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled).ccjs-card-type-set .ccjs-csc-diagram-amex,
.ccjs-card-style .ccjs-csc-diagram-wrapper:not(.ccjs-media-query-disabled).ccjs-card-type-set .ccjs-csc-diagram-amex {
    top: auto;
    bottom: 100%;
    margin-bottom: 1em;
}
}
.ccjs-card.ccjs-card-type-error .ccjs-type-read-only,
.ccjs-card-style.ccjs-card-type-error .ccjs-type-read-only {
    color: #f54828;
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-visa .ccjs-type-read-only,
.ccjs-card-style.ccjs-visa .ccjs-type-read-only,
.ccjs-card.ccjs-visa-electron .ccjs-type-read-only,
.ccjs-card-style.ccjs-visa-electron .ccjs-type-read-only {
    color: #1261cd;
    background-color: rgba(18, 97, 205, .05);
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-laser .ccjs-type-read-only,
.ccjs-card-style.ccjs-laser .ccjs-type-read-only {
    color: #b266ff;
    background-color: rgba(178, 102, 255, .05);
      border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-maestro .ccjs-type-read-only,
.ccjs-card-style.ccjs-maestro .ccjs-type-read-only {
    color: #0066cb;
    background-color: rgba(0, 102, 203, .05);
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-unionpay .ccjs-type-read-only,
.ccjs-card-style.ccjs-unionpay .ccjs-type-read-only {
    color: #f03;
    background-color: rgba(255, 0, 51, .05);
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-jcb .ccjs-type-read-only,
.ccjs-card-style.ccjs-jcb .ccjs-type-read-only {
    color: #2b9738;
    background-color: rgba(42, 151, 56, .05);
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-diners-club .ccjs-type-read-only,
.ccjs-card-style.ccjs-diners-club .ccjs-type-read-only {
    color: #0079be;
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-amex .ccjs-type-read-only,
.ccjs-card-style.ccjs-amex .ccjs-type-read-only {
    color: #2e77bc;
    background-color: rgba(46, 119, 188, .05);
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-discover .ccjs-type-read-only,
.ccjs-card-style.ccjs-discover .ccjs-type-read-only {
    color: #f79b00;
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-mastercard .ccjs-type-read-only,
.ccjs-card-style.ccjs-mastercard .ccjs-type-read-only {
    color: #f67214;
    border-top: 1px solid rgba(#5e656b, .15);
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card.ccjs-dankort .ccjs-type-read-only,
.ccjs-card-style.ccjs-dankort .ccjs-type-read-only {
    color: #ed1c24;
    border-top: 1px solid rgba(#5e656b, .15);
    border-bottom: 0;
    opacity: 1;
    filter: alpha(opacity=100);
}
.ccjs-card .ccjs-type-read-only,
.ccjs-card-style .ccjs-type-read-only {
    opacity: 0;
    filter: alpha(opacity=0);
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
    transition: all .5s;
    content: ' ';
    //position: absolute;
    //bottom: 0;
    //right: 1.36363636em;
    color: #fff;
    background: 0;
    font-size: 1.1em;
    padding: .18181818em .45454545em;
    z-index: 1;
    margin: .5em 1em;
    padding-top: 1em;
}
.ccjs-card .ccjs-hidden-card-type,
.ccjs-card-style .ccjs-hidden-card-type {
    //position: absolute;
    //bottom: 0;
    //right: 1.5em;
    font-size: 1em;
    display: none!important;
}
.ccjs-card.ccjs-center-csc-diagram .ccjs-csc-diagram,
.ccjs-card-style.ccjs-center-csc-diagram .ccjs-csc-diagram,
.ccjs-card.ccjs-center-csc-diagram .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-center-csc-diagram .ccjs-csc-diagram-amex {
    left: auto!important;
    top: auto!important;
    bottom: auto!important;
    margin: 0!important;
    right: 6em!important;
}
.ccjs-card.ccjs-center-csc-diagram .ccjs-csc-diagram,
.ccjs-card-style.ccjs-center-csc-diagram .ccjs-csc-diagram {
    bottom: 52%!important;
}
.ccjs-card.ccjs-center-csc-diagram .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-center-csc-diagram .ccjs-csc-diagram-amex {
    top: 52%!important;
}
.ccjs-card.ccjs-center-csc-diagram.ccjs-card-type-set .ccjs-csc-diagram,
.ccjs-card-style.ccjs-center-csc-diagram.ccjs-card-type-set .ccjs-csc-diagram {
    display: block;
    top: 3.18181818em!important;
}
.ccjs-card.ccjs-center-csc-diagram.ccjs-card-type-set .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-center-csc-diagram.ccjs-card-type-set .ccjs-csc-diagram-amex {
    display: none;
}
.ccjs-card.ccjs-center-csc-diagram.ccjs-amex .ccjs-csc-diagram,
.ccjs-card-style.ccjs-center-csc-diagram.ccjs-amex .ccjs-csc-diagram {
    display: none;
}
.ccjs-card.ccjs-center-csc-diagram.ccjs-amex .ccjs-csc-diagram-amex,
.ccjs-card-style.ccjs-center-csc-diagram.ccjs-amex .ccjs-csc-diagram-amex {
    display: block;
    top: 3.18181818em!important;
}
.ccjs-card {
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    -ms-box-sizing: content-box;
    box-sizing: content-box;
    //background: #fafafa;
    font-size: 16px;
    font-family: 'Source Sans Pro', Helvtica, Arial, san-serif;
    text-align: left;
    position: relative;
    z-index: 10000;
    margin: 1em auto;
    border: 1px solid #dbdbdb;
}
.ccjs-card,
.ccjs-card .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-amex {
    //width: 23em!important;
    //height: 14em!important;
    -webkit-border-radius: .75em;
    -moz-border-radius: .75em;
    border-radius: .75em;
}
.ccjs-card .ccjs-csc-diagram,
.ccjs-card .ccjs-csc-diagram-amex {
    border: 1px solid #c2c2c2;
}
.ccjs-card label.ccjs-number {
    //top: 2.25em;
    //left: 1.5em;
    //width: 13.25em;
    //position: relative;
}
.ccjs-card label.ccjs-number input {
    //width: 10.35em;
    //position: absolute;
    //z-index: 0;
    //top: 1.2em;
    //left: 0;
}
.ccjs-card label.ccjs-number input.ccjs-hidden {
    visibility: hidden;
    position: absolute;
}
.ccjs-card label.ccjs-number input.ccjs-number-formatted {
    z-index: 1;
}
.ccjs-card .ccjs-expiration {
    //position: absolute;
    //bottom: 4.75em;
    //right: 1.5em;
    //width: 8em;
}
.ccjs-card .ccjs-expiration select {
    font-size: 1em;
    *font-size: 1.5em;
    padding-left: 7px;
}
.ccjs-card .ccjs-expiration legend {
}
.ccjs-card .ccjs-expiration .ccjs-month,
.ccjs-card .ccjs-expiration .ccjs-year {

}
.ccjs-card .ccjs-expiration .ccjs-year {
}
.ccjs-card .ccjs-expiration:after {
    //content: '/';
    //position: absolute;
    //line-height: 2;
    //left: 3.5em;
    //width: 1em;
    //text-align: center;
}
.ccjs-card label.ccjs-name {

}
.ccjs-card label.ccjs-name input {

}
.ccjs-card:not(:-moz-handler-blocked) select {
    padding: .25em 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}
.ccjs-incomplete.ccjs-startedProgress {
    border: 1px solid #FF430A;
}
fieldset.ccjs-incomplete.ccjs-startedProgress {
    border: 0;
}
.ccjs-show-warnings input.ccjs-incomplete,
.ccjs-show-warnings select.ccjs-incomplete,
.ccjs-show-warnings fieldset.ccjs-incomplete select,
.ccjs-show-warnings fieldset.ccjs-incomplete input {
    border: 1px solid #FF430A;
}
.ccjs-always-show-warnings input.ccjs-incomplete,
.ccjs-always-show-warnings select.ccjs-incomplete,
.ccjs-always-show-warnings fieldset.ccjs-incomplete select,
.ccjs-always-show-warnings fieldset.ccjs-incomplete input {
    border: 1px solid #FF430A;
}
input.ccjs-complete,
select.ccjs-complete,
fieldset.ccjs-complete select,
fieldset.ccjs-complete input {
    //border: 1px solid #34B219!important;
}
input.ccjs-complete:focus,
select.ccjs-complete:focus,
fieldset.ccjs-complete select:focus,
fieldset.ccjs-complete input:focus {
  
}
input.ccjs-error,
select.ccjs-error,
fieldset.ccjs-error select,
fieldset.ccjs-error input {
    border: 1px solid #FF430A!important;
}
input.ccjs-error:focus,
select.ccjs-error:focus,
fieldset.ccjs-error select:focus,
fieldset.ccjs-error input:focus {

}


.ccjs-card {
  margin: 0 0 1em;
  padding-top: 1em;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  //flex-flow: column;
  .row {
   //display: flex;
    //justify-content: center;
    //align-items: space-around;
  }
  label, input {
    width: 97%;
    height: auto;
  }
  label input {
    padding: .75em .5em .65em;
  }
  fieldset {
    margin: .5em 4px .5em 1.5em;
    float: left;
    //flex: 1;
  }
  fieldset.number,
  fieldset.name {
    width: 65%;
    //flex-basis: 80%;
  }
  
  fieldset.security {
    width: 20%;
    margin-left: 0;
    margin-right: 0;
    //flex-basis: 50px;
    //flex-basis: 20%;
    //display: flex;
  }
  fieldset.ccjs-expiration {
    margin-left: 0;
    margin-right: 0;
    width: 29%;
  }
}

.ccjs-card {
  font-family: Lato;
  //font-size: 1.5rem;
  background: rgba(#12202C, .75);
  border: 2px solid #12202C;
  border-radius: .25em;
  select, .ccjs-card-number {
    font-family: $mono;
    //letter-spacing: -1px;
  }
  label {
    input {
      margin-top: .5em;
      font-family: $mono;
      background: #12202C;
    }
  }

  &.ccjs-visa {
    .ccjs-type-read-only {
      background: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/14625/visa-white.svg') no-repeat;
      background-position: right center;
      text-indent: -9999em;
      border: none;
    }
  }
  
  &.ccjs-amex {
    .ccjs-type-read-only {
      padding-top: 2em;
      background: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/14625/amex-white.svg') no-repeat;
      background-position: right center;
      text-indent: -9999em;
      border: none;
    }
  }
}

.ccjs-card label.ccjs-name input {
  text-transform: uppercase;
}

legend.expiration {
  margin-bottom: .5em;
}

select {
  height: 53px;
  top: 2px;
  float: left;
  width: 35%;
  -webkit-appearance: none;
}

 option:disabled {
   background: red;
 }

.btn {
  color: #fff;
  outline: 0;
  border: none;
  font-family: 'Lato';
  padding: 1em;
  border-radius: .25em;
  text-align: center;
  width: 100%;
  border: 1px solid rgba(#fff, .35);
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: .3s background;
  
  &.btn-primary {
    background: #3BB029;
    &:hover {
      background: darken(#3BB029, 10%);
    }
  }
  
  &.btn-paypal {
    background: #003087;
    &:hover {
      background: darken(#003087, 10%);
    }
  }
  &.btn-coinbase {
    background: #0072C8;
    &:hover {
      background: darken(#0072C8, 10%);
    }
  }
}

.alternate-payment {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2em;
  .btn {
    width: 48%;
  }
}
!

JS
!
999px

Console