.header {
  background: #3d3d3d;
  padding: 20px;
  color: white;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
}

.header .link {
  padding: 10px 10px;
  color: inherit;
  text-decoration: none;
}

.header .link .logo {
  display: inline;
}

.cards {
  margin: 50px 5px 20px;
  color: white;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -ms-flex-line-pack: justify;
      align-content: space-between;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}

.cards .card {
  border: 1px solid #272727;
  text-decoration: none;
  background: #272727;
  color: inherit;
  padding: 20px 40px;
  margin: 10px 0;
}

.form {
  display: inline-block;
  padding: 10px 20px;
  background: #272727;
}

.form h3 {
  display: inline;
  color: white;
}

.form .submitbutton {
  display: inline;
}

* {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: black;
}