html, body {
  background-color: #b8b8b8;
  color: white;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
}
body {
  background-image: url("compo/img/background.png");
}

.button {
  padding: 20px;
  border: #554 4px solid;
  margin: 8px;
  border-radius: 8px;
  display: block;
  background: #FFC;
  font-weight: bold;
  color: #444;
  text-decoration: none;
  max-width: 280px;
  transition: background 0.2s, border 0.2s, color 0.2s;
}
.button:hover {
  background: #DDA;
  border: #776 4px solid;
  color: #000;
}
.button .linkpart {
  padding-bottom: 8px;
  color: #111;
}
.button:hover .linkpart {
  text-decoration: underline;
}


.screen {
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

.hflex {
  display: flex;
  flex-direction: row;
}

.vflex {
  display: flex;
  flex-direction: column;
}

.fluid {
  flex: 1;
}

.flexcenter {
  align-self: center;
}