查看“MediaWiki Vector.css”的源代码

/* 让内容区域自动全宽铺开 */
.mw-parser-output {
  max-width: 100% !important;
  width: 100% !important;
  padding: 20px;
  margin: 0 auto;
  font-size: 14px;
  line-height: 1.7;
  box-sizing: border-box;
}

/* Vector 皮肤：让中间容器支持全宽 */
body.skin-vector .vector-page-content,
body.skin-vector .mw-page-container,
body.skin-vector .mw-content-container,
body.skin-vector .mw-body {
  max-width: 100% !important;
  width: 100% !important;
  box-sizing: border-box;
}