Buttons are one of the most used components. It's the very basic way that users can interact with an application. Currently HolaKit provides 3 kinds of button: Normal buttons, primary buttons and Ghost buttons.

• Normal Buttons: For general purpose.
• Primary Buttons: For primary operations. Normally in a row of buttons, you have at least one primary buttons, for the most frequent usage.
• Ghost Buttons: For banner and heroes. It's kind of call-to-action.

All buttons classes can be apply to form submits (<input type="submit">), HTML buttons (<button>) and links (<a>). In many cases you can also use just a bare a.hola-button, for links in a row with other buttons to be properly aligned.

Cards are the basic content blocks in HolaKit. You will be using it in most cases you need to host some content.

Card components are blocks by default. We don't suggest using them as inlines or inline-blocks. Normally you would just wrap cards in card stack or get them in layouts so they won't get too wide. In some cases you want to wrap cards directly in containers: Fine, but don't do it every where, since cards can be too wide for desktop users. In the following example page, we explictly get a max width for demostration purpose.

Cards can't be too narrow too; Because we have great padding around cards, if you get 4 or more columns in a container, the whole page may looks too messy, and lines in each column will be too short for a comfortable reading experience.

Of course titles are accepted in cards and you will use them frequently. We also get head images for cards, and even pure image cards. Go ahead and make your app vivid.

We have patched cards for being used in links; Feel free to use them as clickable items, but don't use them as buttons. For example, you can use linked cards as article items in a list page of blog, but don't use a card titled "Click Here" as an action button. Card always contains some actual data, instead of pure commands / verbs.

You have seen this in the basic section. But card stacks are more than a container of cards.

We have card stack titles to name the whole stack of cards, and they can be in both light and dark versions. In most cases you use dark versions, but in case you're using our hero component, you may need to set the first stack title to light version to match the dark blue extended hero background. Things can be much different when you're using a picture for heros, or a custom primary color. Try both color version to decide which suits best.

Card stacks can be used in combination with columns, and we automatically handle card margins to have correct shadow rendering - browsers wraps not only content but also any display effect applied to content in columns. Be aware, currently we only support using card stack columns directly under hola-container.

Info Sheet is simply designed for displaying key-value-paired data. It's only for plain text data and you should never try to embed any other compoents in it, except badges. It's great for showing something like a ticket or pass. Also make sure that your key should be concise; Longer key may result in a ugly multiline label.