A context rail sidebar built with pure HTML and CSS that presents secondary content or contextual tools alongside primary page content. It enhances situational awareness and navigation clarity without disrupting the main layout flow.
Usage
Use this component when interfaces require supporting contextual information, such as related links, quick actions, filters, summaries, or supplemental navigation within dashboards and documentation pages.
Implementation
The layout uses a side aligned content rail structure with controlled width and spacing to separate primary and secondary content areas. CSS manages alignment, responsive stacking behavior, and visual balance across screen sizes.
HTML
<nav class="sidebar-rail">
<a class="is-active">Overview</a>
<a>Usage</a>
<a>Billing</a>
</nav>CSS
.sidebar-rail {
width: 200px;
padding: 0.6rem;
border-radius: 18px;
background: #ECECEC;
display: grid;
gap: 0.25rem;
}
.sidebar-rail a {
padding: 0.45rem 0.6rem;
border-radius: 12px;
font-size: 12px;
color: #9ca3af;
text-decoration: none;
transition: background 150ms ease, color 150ms ease;
}
.sidebar-rail a:hover {
background: #1e293b;
color: #e5e7eb;
}
.sidebar-rail a.is-active {
background: #6366f1;
color: #ffffff;
font-weight: 600;
}Notes
- Built with pure HTML and CSS
- No JavaScript required
- Displays contextual supporting content
- Maintains structured layout separation
- Fully responsive across breakpoints
- Suitable for dashboards and documentation pages
- Easy to customize width and alignment
Preview styles shown. Production customization recommended.
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