Themes

The embedded form includes 2 ready-to-use themes. Each theme requires for corresponding CSS and JS files to be loaded.

The CSS theme file allows to apply a basic theme while waiting for the payment form to finish loading. This is particularly important on devices with slow connection. It must always be placed in the header of the page.

The JS theme file contains the active part of the theme (animations, styles, elements, etc.). It must be loaded before the main JavaScript library.

Each of these themes can be used in embedded form mode or in pop-in mode.

Classic theme

Classic is the default theme. The associated files are:

Example of classic theme:

Example of code for displaying the classic theme:

Classic theme (pop-in)

You can also display the classic theme in a pop-in by adding the kr-popin attribute:

The result will be:

It is possible to personalize the image and the name of the shop appearing in the pop-in. For more information, go to: JavaScript client reference.

Material Design theme

Material Theme applies the guidelines defined by Google. The associated files are:

Example of Material Theme:

Example of code for displaying Material Theme:

Material Theme (pop-in)

You can also display Material Theme in a pop-in by adding the kr-popin attribute:

Form without a theme

If you want to create a custom theme, it is recommended to include the no-theme-css CSS. It ensures minimum compatibility with all browsers (desktop and mobile) on the market :

Customizing a theme

The embedded form (as well as the pop-in) applies the styles in 2 steps:

1. by loading a CSS file (e.g. classic-reset.min.css) in the header of the page.
2. Afterwards, the theme is refined thanks to a configuration object (included in classic.js).

The initial CSS file

This file allows to reserve the space and apply a minimal style to the form before JavaScript is loaded and executed.

We recommend always loading this CSS file in the page header. classic-reset.min.css , or no-theme.min.css are two examples of the initial CSS files provided.

The configuration object

JavaScript theme files (such as classic.js or material.js ) contain a configuration object that defines the whole theme: animations, styles, HTML elements.

The only difference between the classic, material, embedded or pop-in forms is in this configuration object.

The configuration object reference

Examples of configuration of the pop-in header

The configuration object must be passed as follows:

let config = {
  "merchant": {
    "header": {
      "image": {
        "visibility": false
      }
    }
  }
};

KR.setFormConfig(config);

Here are some examples of configuration of the pop-in header.

Change the logo:

{
  "merchant": {
    "header": {
      "image": {
        "type": "logo",
        "visibility": true,
        "src": "<https://www.logomoose.com/wp-content/uploads/2018/02/logomoosedogandowl-011.jpg>"
      }
    }
  }
}

Pass an image in string format:

{
  "merchant": {
    "header": {
      "image": {
        "type": "background",
        "visibility": true,
        "src": "data:image/svg+xml;base64,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"
      }
    }
  }
}

Creating you own themes

The payment form fields are customizable via standard CSS directives. All you need to do is apply them and they will be automatically transferred, even for the elements contained in the iframes of sensitive fields.

Thanks to a system of hidden fields, the JavaScript client will automatically retrieve the styles of your page and include them in iframes.