iframe {
  height: 200px;
}

aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-block: 16px;
  text-align: center;
}

.article-list {
 margin: 4px auto 16px auto;
}

section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

section article { 
  width: 100%;
}

section footer {
  width: 100%;
  margin-top: 1lh
}