.yue {
  max-width: 768px; margin: 0 auto;
}

.yue h2 {
  font-size: 1.5em;
  margin: 0.83em 0;
}

a, a:link, a:hover, a:active, a:visited, a:focus {
  color: #1da1f2;
  outline: none;
  text-decoration: none;
}

body {
  margin: 0;
  padding: 0;
  min-width: 320px;
  background: #FFF;
  line-height: 1.4285em;
  overflow-x: hidden;
  font-family: "Open Sans", sans-serif;
}

.article-footer {
  font-size: 1em;
  text-align: center;
}

.article-home {
  text-align: left;
  z-index: 9999;
}

.article-top {
  margin-bottom: 1em;
  text-align: center;
}

.article-wrapper {
  margin: 0;
  padding: 0.4em 1em 6em;
  overflow-x: hidden;
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

.logo-img  {
  padding-bottom: 10px;
  text-align: center;
}