Parameter values are too close together (renderedMarkdown margin set to 0 em)

Q&A (please complete the following information)

• OS: macOS
• Browser: chrome
• Version: 117.0.5938.62
• Method of installation: npm dist assets
• Swagger-UI version: 5.2.0 and > 5.2.0
• Swagger/OpenAPI version: OpenAPI 3.1

Content & configuration

We recently upgraded from OpenAPI 3.0 to 3.1. Upon doing so we found that the additionalProperties: false false was being rendered to additionalProp1. This is a known bug that was fixed in version 5.2.0. We upgraded to the latest version (5.7.2) and found that the spacing in our endpoint parameters had become 'squished'. (see screenshot). I dug around using chrome inspect and found that the margin in the paragraph tag was set to 1em in version 5.2.0 and 0em in versions >= 5.3.0. I dug around some more and found that in version 5.3.0 a fix to descriptions alignment was merged, and may be the cause of our issue.

Margin set to 1 em in 5.2.0

Margin set to 0 em in 5.7.2

Example Swagger/OpenAPI definition:

{
    "openapi": "3.1.0",
    "info": {
        "title": "DEMO 6.2.0",
        "version": "",
        "description": "DEMO Using swagger-ui-dist 5.2.0"
    },
    "paths": {
        "/api/eligibility/npi/{npi}": {
            "get": {
                "description": "Look up public information for a single provider by NPI.",
                "parameters": [
                    {
                        "$ref": "#/components/parameters/accept"
                    }
                ],
                "responses": {
                    "200": {}
                }
            }
        }
    },
    "components": {
        "parameters": {
            "accept": {
                "name": "Accept",
                "in": "header",
                "description": "Request a content type and a specific API version. For example, to request `application/json`\nand version 4 of the API, the header value should be `application/vnd.qpp.cms.gov.v4+json`.\nThe API will return the default version if the Accept header is not\nincluded or if the requested version is not supported.\n",
                "schema": {
                    "type": "string",
                    "enum": [
                        "application/vnd.qpp.cms.gov.v4+json"
                    ],
                    "default": "application/vnd.qpp.cms.gov.v4+json"
                },
                "required": false
            }
        }
    }
}

Swagger-UI configuration options:

const express = require('express');
const app = express();
const swaggerUi = require('swagger-ui-express');
const swaggerDocument = require('./swagger.json');

app.set('view engine', 'ejs')

app.get('/', (req, res) => {
    res.render('index', {text: "world"});
})

app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocument));



app.listen(3005)

?yourQueryStringConfig

Describe the bug you're encountering

To reproduce...

Steps to reproduce the behavior:

1. Install express, swagger-ui-dist@5.2.0, swagger-ui-express
2. Run node app.js
3. Go to http://localhost:3005/api-docs
4. Click on GET api/eligibility/npi/{npi}
5. Scroll down to parameters
6. See spacing for acceptable values and default values

Expected behavior

I would have expected the parameter space to have not changed between versions. We would prefer the 1em margins in the parameters.

Screenshots

See above

Additional context or thoughts

Based on the comments in #8963 it seems like that ticket was a harmonization of margins across multiple files. So it is unclear if this is a true bug for a bug/feature that we have been used to.

Reproduce the spacing difference with the provided app.js setup, comparing swagger-ui-dist 5.2.0 with 5.7.2 around the rendered parameter descriptions. Inspect the description-alignment change referenced in #8963 and verify the affected paragraph margins. Done means parameter values and defaults have the intended spacing without disrupting the alignment fix.