index.css

/*! Swagger UI 4.13.2 | https://swagger.io/tools/swagger-ui/ | Apache License 2.0 (license file can be found at ./LICENSE) */
html {
    box-sizing: border-box;
    overflow: -moz-scrollbars-vertical;
    overflow-y: scroll;
}

*,
*:before,
*:after {
    box-sizing: inherit;
}

body {
    margin: 0;
    background: #fafafa;
}