How to add and correctly format the code snippet in the HTML page?

Question

I want to add a code (block) snippet in my HTML page using <code>:

<pre>
    <code class="codeblock">
        s3://bucket-name/partition_date=2018-05-22/views.parquet
        s3://bucket-name/partition_date=2018-05-22/clicks.parquet
      s3://bucket-name/partition_date=2018-05-21/views.parquet
        s3://bucket-name/partition_date=2018-05-21/clicks.parquet
        s3://bucket-name/partition_date=2018-05-20/views.parquet
        s3://bucket-name/partition_date=2018-05-20/clicks.parquet
        //...
    </code>
</pre>

But the code is shown as follows (right shifted):

How can I show the code correctly so that the approach is equally supported by Safari, Chrome, Firefox and IE?

Intervalia · Accepted Answer · 2018-05-23 20:52:33Z

1

You don't need <pre> and <code>.

Either just use <pre> like this:

<pre class="codeblock">
  s3://bucket-name/partition_date=2018-05-22/views.parquet
  s3://bucket-name/partition_date=2018-05-22/clicks.parquet
  s3://bucket-name/partition_date=2018-05-21/views.parquet
  s3://bucket-name/partition_date=2018-05-21/clicks.parquet
  s3://bucket-name/partition_date=2018-05-20/views.parquet
  s3://bucket-name/partition_date=2018-05-20/clicks.parquet
  //...
</pre>

Or use <code> and some CSS, like this:

.codeblock {
  white-space: pre
}

<code class="codeblock">
  s3://bucket-name/partition_date=2018-05-22/views.parquet
  s3://bucket-name/partition_date=2018-05-22/clicks.parquet
  s3://bucket-name/partition_date=2018-05-21/views.parquet
  s3://bucket-name/partition_date=2018-05-21/clicks.parquet
  s3://bucket-name/partition_date=2018-05-20/views.parquet
  s3://bucket-name/partition_date=2018-05-20/clicks.parquet
  //...
</code>

Most of all, reduce the amount of whitespace you have at the front of each line within the <pre> or <code> tags.

If your server controls what will be placed into the <pre> or <code> then you can reduce the amount of whitespace on those lines.

If not, then the client could read the textContent of the <pre> or <code> tag, split them into lines, trim them, rejoin them and set the value back into textContent.

edited May 23, 2018 at 20:52

answered May 23, 2018 at 19:11

Intervalia

11.1k2 gold badges35 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ScalaBoy Over a year ago

I wonder if it's possible to avoid shifting the code to the right? In the editor I have the code shifted to the right, because it looks clear visually. But I want to formatted it differently in the HTML page. It should have a background colour and should not be shifted.

Intervalia Over a year ago

You can always read the textContent of the <pre> or <code> tag, split them into lines, trim them, rejoin them and set the value back into textContent.

cjaube · Accepted Answer · 2018-05-23 19:09:24Z

0

The pre element will render the code exactly as it's written, including the white space (https://developer.mozilla.org/en-US/docs/Web/HTML/Element/pre).

So all those spaces you have at the beginning are going to push it to the right. Start by removing all the surrounding white space and then if it's still getting pushed to the right, take a look at your styles.

answered May 23, 2018 at 19:09

cjaube

1736 bronze badges

Comments

Ronnie Smith · Accepted Answer · 2018-05-23 19:33:38Z

Your doing it right except you gotta remove all the tabs and spaces out, even on your development machine / IDE. Something like below. Notice, all that <code> is going to have any spaces/tabs preserved so you gotta take that into account in your source code.

<body>
    <main>
        <pre>
            <code class="codeblock">
s3://bucket-name/partition_date=2018-05-22/views.parquet
s3://bucket-name/partition_date=2018-05-22/clicks.parquet
s3://bucket-name/partition_date=2018-05-21/views.parquet
s3://bucket-name/partition_date=2018-05-21/clicks.parquet
s3://bucket-name/partition_date=2018-05-20/views.parquet
s3://bucket-name/partition_date=2018-05-20/clicks.parquet
            </code>
        </pre>
    </main>
</body>

Collectives™ on Stack Overflow

How to add and correctly format the code snippet in the HTML page?

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related