# Add a strike html component

In conf.py file:

```
rst_prolog = """
.. role:: strike
"""
```

Extend the layout theme template `layout.html` with:

```
{% extends "!layout.html" %}
{% set css_files = css_files + ["_static/style.css"] %}
```

In the `style.css`:

```
.strike {
  text-decoration: line-through;
}
```