header_style.css

@import url("fonts.css");

body {
    margin: 0;
    padding: 0;
    background-color:  #FAFAFA;
}






.flex-container-header {
    display: -webkit-flex;
    display: flex;
    width: auto;
    height: auto;
    background-color: #263238;
}

.flex-item-header {
    width: auto;
    height: 100px;
    margin: 10px;
}

h1 {
    font-family: OpenSans-Light;
    color: white;
    font-size: 3rem;
    line-height: 3rem;
    margin-top: calc((1.5rem - 2rem) + 2.5rem);
    margin-bottom: 1.5rem;
}

@media screen and (max-width: 855px) {
  h1 {
      font-size: 2.5rem;
      line-height: 2.5rem;
      margin-top: calc((1.5rem - 2rem) + 2rem);
      margin-bottom: 1.5rem;
  }
}

@media screen and (max-width: 510px) {
  h1 {
      font-size: 2rem;
      line-height: 2rem;
      margin-top: calc((1.5rem - 2rem) + 1.5rem);
      margin-bottom: 1.5rem;
  }
}