body {
    font-family: Helvetica, Arial, sans-serif;

}

header {

    display: flex; /* put things side by side */
    background-color: blue; /* fill */
    height: 2rem; /* 1 rem = 16px */
    line-height: 2rem; /* line of text = height = vertically centered text */
    color: #de1111; /* text color */
    border-bottom: 4px solid #0bf603; /* width + type + color */
}


Header p {
  font-family: "Orbitron", sans-serif;
  font-weight: 400;
  font-style: normal;
  margin-left: 1rem;
  font-size: 1.2rem;
}