Pattern CSS – Inline Block Styles

The missing inline CSS editor for blocks. Very powerful with synced patterns.

How to

• Every block will have a new “Additional CSS” settings panel.
• To target a block, you must use the [block] selector.
• To target any element inside the block, use the normal CSS selector.
• Use !important to override your theme styles (use sparingly)

Features

• Smart loading. Only loads the CSS when the block is present
• No lock in. The styles are attached to the block attributes
• Scopes styles to the block so that parent/sibling blocks are not affected
• It’s fast. CSS is minified and optimized in the browser
• It’s safe. Invalid, non-spec CSS is never persisted (validated via webassembly sandbox)
• Supports reusable (synced or not-synced) patterns
• See changes on the page as you make them
• Combines adjacent rules (to decrease size)
• Minifies colors and math functions to simplify according to spec
• Supports CSS nesting

Star it on GitHub
DM me on Twitter @kevinbatdorf

Basic Example

/* Target the block directly */
[block] {
  background: antiquewhite;
  padding: 2rem;
}
/* Target any inner elements */
a {
  text-decoration-color: burlywood;
  text-decoration-thickness: 2px;
  text-decoration-style: solid !important;
}
a:hover {
  text-decoration-color: darkgoldenrod;
}

/* Output: */
.pcss-a1b7b016{background:#faebd7;padding:2rem}.pcss-a1b7b016 a{text-decoration-color:#deb887;text-decoration-thickness:2px;text-decoration-style:solid!important}.pcss-a1b7b016 a:hover{text-decoration-color:#b8860b}

Supports Media Queries

@media (prefers-color-scheme: dark) {
  [block] {
    border-color: blue;
  }
}

/* Output: */
@media (prefers-color-scheme:dark){.pcss-cddaa023{border-color:#00f}}

Combines Rules

[block] {
  color: red;
}
.bar {
  color: red;
}

/* Output: */
.pcss-3aa0f0fc,.pcss-3aa0f0fc .bar{color:red}

Fixes redundant properties

[block] {
  padding-top: 5px;
  padding-left: 50px;
  padding-bottom: 15px;
  padding-right: 5px;
}

/* Output: */
.pcss-3aa0f0fc{padding:5px 5px 15px 50px}

Supports CSS nesting

[block] {
  padding: 1rem;
  a {
    color: red;
  }
  background: white;
  /* Including media queries */
  @media (prefers-color-scheme: dark) {
    background: black;
    color:white;
  }
}

/* Output: */
.pcss-f526bb2d{background:#fff;padding:1rem;& a{color:red}@media (prefers-color-scheme:dark){&{color:#fff;background:#000}}}

Check browser support for CSS nesting

css pattern styles stylesheet sync blocks custom inline