pwa-index.css

html,
body {
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
  background: #fafafa;
  font-family: "Helvetica Neue", arial, sans-serif;
  font-weight: 400;
  color: #444;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

#app {
  height: 100%;
}

.site-header {
  padding: 2rem 0 1rem;
}

main {
  display: grid;
  grid-gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-auto-rows: max-content;
  grid-auto-flow: row dense;
}

.article a,
.article a:visited {
  text-decoration: none;
  color: inherit;
}

.article img {
  width: 100%;
}

.error {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.alert {
  display: inline-block;
  padding: 15px;
  border-radius: 0.25rem;
}

.alert--error {
  background-color: #f8d7da;
  color: #721c24;
}