cols: <input id="n_cols" type="number" step=4 min=20 value=80 />
</div>
<pre id="terminal" style="display: inline-block;"></pre>
cols: <input id="n_cols" type="number" step=4 min=20 value=80 />
</div>
<pre id="terminal" style="display: inline-block;"></pre>