body {
  background-color: #000000;
  margin: 0;
}

h1 {
  color: #00fff2; 
  /*height: 50px;*/
  text-align: left;
  background-color: #3f3d3d;
  padding: 1%;
  margin-top: 0;
}

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

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