Many legacy templates use a fixed width of 910px for the main container. This dimension was the "sweet spot" for desktop monitors before responsive design became mandatory. Today, we use fluid grids, but understanding the 910-classic layout helps you gut-check old templates.
Find the body or .outer-wrapper section. Replace the existing width with: html 910 blogspotcom
.outer-wrapper
width: 910px;
display: block;
margin-left: auto;
margin-right: auto;
| View | Best for | Can I paste <iframe>? | Will my <div> stick? |
| :--- | :--- | :--- | :--- |
| Compose (WYSIWYG) | Basic text, images | Sometimes (stripped out) | Often removed |
| Post HTML view | One-off embeds | ✅ Yes | ✅ Yes |
| Theme HTML editor | Global changes, scripts | ✅ Yes (in widgets) | ✅ Yes (in post body) | Many legacy templates use a fixed width of
Final advice: Start small. First, master the post HTML view with simple tables or buttons. Once comfortable, make a backup and experiment in the Theme HTML – but change only one small section at a time. Happy blogging! Find the body or