c2n/web-componentsv1.0.18
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OverviewGetting startedComponentsIconsGuidesExamples
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Card Input

Card number, expiry date and security code in one field, formatted as the brand prints them and checked as they are typed.

Attributes

NameTypeDefaultDescription
brandsstring[][]The brands accepted, by id (visa, mastercard, amex, discover, diners, jcb, unionpay, maestro). Empty accepts all. As an attribute, a ;-separated list.
namestring—Form field name: the form receives name[number], name[expiry] and name[cvc]. With none, the card is not submitted.
requiredbooleanfalseAsks for a card before the form submits.
disabledbooleanfalseTurns the field off; as for a disabled form control, nothing is submitted.
readonlybooleanfalseShows the card without letting it be edited.
labelstring—The accessible name of the group. Inside a c2-form-field, the field's label names it.

Slots

NameDescription
brandThe mark shown while no brand is detected. Defaults to a card outline.
brand-visaThe mark of a Visa card, in place of its text badge. Likewise brand-mastercard, brand-amex, brand-discover, brand-diners, brand-jcb, brand-unionpay and brand-maestro.

Events

NameTypeDescription
card-changeCustomEvent<CardChangeDetail>Fired after every edit, with { brand, complete, error, last4 } and never the number.
inputInputEventFired as any part is typed in.
changeEventFired when a part that was changed loses focus.

CSS parts

Shadow DOM styling hooks used with ::part(name). Prefer CSS custom properties when they cover the change.

NameDescription
fieldThe box around the three parts.
brandThe brand mark.
badgeThe text badge of a detected brand.
numberThe card number input.
expiryThe expiry date input.
cvcThe security code input.
errorThe line with the problem, hidden inside a c2-form-field, which shows it instead.

CSS custom properties

Grouped by semantic target and state from --c2-<component>__<target>__<state>--<property>. Click a group to collapse it; click a name to copy it.

NameTypeDefaultDescription
c2-card-input
--c2-card-input--font-sizefont-size14px
--c2-card-input--colorcolor#18181b
--c2-card-input--heightpixel40px
--c2-card-input--paddingpadding0 12px
--c2-card-input--borderborder1px solid #d4d4d8
--c2-card-input--border-radiusborder-radius6px
--c2-card-input--backgroundcolor#ffffff
--c2-card-input--gappixel12pxSpace between the parts.
c2-card-input > focus
--c2-card-input__focus--borderborder1px solid #0265dc
--c2-card-input__focus--outlineoutline2px solid rgba(2, 101, 220, 0.4)
c2-card-input > error
--c2-card-input__error--borderborder1px solid #dc2626
--c2-card-input__error--colorcolor#dc2626The problem line and the part at fault.
--c2-card-input__error--font-sizefont-size12px
c2-card-input > placeholder
--c2-card-input__placeholder--colorcolor#71717a
c2-card-input > disabled
--c2-card-input__disabled--opacityopacity0.38
c2-card-input > expiry
--c2-card-input__expiry--widthwidth7ch
c2-card-input > cvc
--c2-card-input__cvc--widthwidth5ch
c2-card-input > brand
--c2-card-input__brand--colorcolor#71717aThe card outline shown while no brand is detected.
c2-card-input > badge
--c2-card-input__badge--backgroundcolor#f4f4f5
--c2-card-input__badge--colorcolor#18181b
--c2-card-input__badge--font-sizefont-size10px
--c2-card-input__badge--font-weightfont-weight600
--c2-card-input__badge--border-radiusborder-radius4px

Text and languages

The text the component shows, in English. It shows another language when the app adds one with addTranslations, under card-input, and the nearest lang asks for it; any message not translated stays in English. {0}, {1}… stand for the values a message carries. Languages guide.

KeyEnglishValues
labelCard details—
numberCard number—
expiryExpiry date (MM / YY)—
cvcSecurity code—
numberPlaceholder1234 1234 1234 1234—
expiryPlaceholderMM / YY—
cvcPlaceholderCVC—
valueMissingPlease enter your card details.—
numberIncompleteYour card number is incomplete.—
numberInvalidYour card number is invalid.—
unsupported{0} cards are not accepted.{0} brand
unsupportedUnknownThis card type is not accepted.—
expiryIncompleteYour card's expiry date is incomplete.—
expiryInvalidYour card's expiry month is invalid.—
expiryPastYour card's expiry date is in the past.—
cvcIncompleteYour card's security code is incomplete.—
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