Page structure
tier 2 — classesThe parts that hold a page together: the title row, section breaks, editorial asides, and a block of code or output.
Page head
Heading, an optional supporting line, and the actions that apply to the whole page. It wraps rather than shrinking the title: on a narrow screen the actions drop below the heading, because the heading is what tells you where you are and a truncated one tells you less than nothing.
Approval queue
Items the AI proposed and is waiting on a human decision for.
<div class="page-head">
<div class="page-head-text">
<h1>Approval queue</h1>
<p>Items the AI proposed and is waiting on a human decision for.</p>
</div>
<div class="page-head-actions">
<button class="btn" type="button"><i class="ri-refresh-line"></i> Refresh</button>
<button class="btn btn-primary" type="button"><i class="ri-check-double-line"></i> Approve all</button>
</div>
</div>
Dividers
A rule between sections. Use it when two blocks are related but distinct; use whitespace when they are merely sequential, and a card when one of them is an object in its own right.
The labelled variant puts its text in a gap in the rule, made with a flex row rather than a background trick, so it works on any surface and needs no colour to match.
Above the rule.
Below it.
After a labelled break.
After a start-aligned one.
<div>
<p class="lede">Above the rule.</p>
<hr class="divider" />
<p class="lede">Below it.</p>
<div class="divider-labelled">Escalation</div>
<p class="lede">After a labelled break.</p>
<div class="divider-labelled divider-labelled--start">Archive</div>
<p class="lede">After a start-aligned one.</p>
</div>
Callouts
An editorial aside inside prose — a note, a caveat, a worked example. It is part of the content and stays there for good.
Three neighbours, and picking the wrong one misleads the reader:
.callout is permanent and about the content;
.alert is about the page right now;
.card-warning is about one card's own data.
An alert that never goes away trains people to ignore alerts.
.callout-info — background reading that changes nothing the reader
has to do.
.callout-danger — a permanent hazard in the content itself, not a
failure of the page. Reserve it: a page of red callouts is a page nobody reads.
<div>
<div class="callout">
<i class="ri-information-line"></i>
<div class="callout-body">
<span class="callout-title">Times are UTC</span>
Every timestamp in this console is UTC, including the SLA countdown. The
clock in your header is local.
</div>
</div>
<div class="callout callout-warn">
<i class="ri-alert-line"></i>
<div class="callout-body">
Approving a reservation writes to the warehouse immediately. There is no undo, only
a follow-up correction.
</div>
</div>
<div class="callout callout-info">
<i class="ri-information-line"></i>
<div class="callout-body">
<span class="callout-title">Informational</span>
<code>.callout-info</code> — background reading that changes nothing the reader
has to do.
</div>
</div>
<div class="callout callout-danger">
<i class="ri-error-warning-line"></i>
<div class="callout-body">
<code>.callout-danger</code> — a permanent hazard in the content itself, not a
failure of the page. Reserve it: a page of red callouts is a page nobody reads.
</div>
</div>
<div class="callout callout-go">
<i class="ri-lightbulb-line"></i>
<div class="callout-body">
<span class="callout-title">Tip</span>
Hold <kbd>Shift</kbd> while approving to skip the confirmation for the rest of
the session.
</div>
</div>
</div>
Code blocks
For a command, a payload, a stack trace — anything the reader wants verbatim. The copy button appears on hover, and stays visible where there is no hover to speak of: a button permanently over the first line is in the way of the thing it copies.
No syntax highlighting, and there will not be any. It needs a tokeniser per language, which is either a runtime download or a large bundle, and this package loads nothing at runtime. The block scrolls sideways rather than wrapping, because a wrapped command no longer copies correctly by eye.
dotnet add package DR.Simple_UI
dotnet restore{
"number": "ORD-4209",
"priority": 3,
"assignment_group": "EU-Central",
"reservation": { "action": "reroute", "confidence": 0.87 }
} <div style="display:flex; flex-direction:column; gap:16px">
<div class="code-block">
<button class="code-block-copy" type="button" data-copy-target>
<i class="ri-file-copy-line"></i> Copy
</button>
<pre><code>dotnet add package DR.Simple_UI
dotnet restore</code></pre>
</div>
<div class="code-block">
<div class="code-block-head">
<span>order.json</span>
<button class="code-block-copy" type="button" data-copy-target>
<i class="ri-file-copy-line"></i> Copy
</button>
</div>
<pre><code>{
"number": "ORD-4209",
"priority": 3,
"assignment_group": "EU-Central",
"reservation": { "action": "reroute", "confidence": 0.87 }
}</code></pre>
</div>
</div>