MediaWiki:Common.css

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.wechat-qr {
  text-align: left;
  margin: 1.5em 0;
}

.wechat-qr img {
  max-width: 90px;
  height: auto;
  display: block;
  margin: 0;
}

.wechat-qr .caption {
  font-size: 0.95em;
  color: #555;
  margin-top: 0.4em;
}

.mw-parser-output a.external {
  background-image: none !important;
  padding-right: 0 !important;
}