body {
  height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
  font-family: 'Roboto', sans-serif;
  font-size: 1em;
  line-height: 1.5;
}

.main-content {
  background: #122c460f;
  height: 80vh;
  flex: 1 0 auto;
  padding: 0 2rem;
}

.header {
  background: #122c46;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  flex-wrap: wrap;
  flex: 0 1 60%;
  color: white;
  min-height: 70px;
}

h3 {
  text-align: center;
}

a {
  color:white;
  text-decoration: none;
}

.caption {
  text-align: center;
  color: white;
}

.caption h1 {
  font-size: 1.5em;
}

p {
  font-size: 0.8em;
  margin-top: 0;
}

h2 {
  font-size: 1.5em;
  margin-bottom: 0;
}

ul {
  list-style: none;
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 170px;
}
li {
  margin: 9px;
}

.footer {
  background: #122c46;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  flex-wrap: wrap;
  flex: 0 1 60%;
  color: white;
  min-height: 97px;
}

.footer p {
  color: white;
}

button {
  background: #0178E6;
  color: white;
  border: 0;
  padding: 20px;
}


@media all and (max-width:550px) and (min-width:0px) {
  li {
    margin: 10px;
  }
  .caption h2 {
    font-size: 1.5em;
    font-weight: 700;
  }
  p {
    font-size: 0.8em;
    margin-top: 0;
  }
  button {
    font-size: 1em;
  }
  .header {
    min-height: 160px;
  }
  .header div{
    margin-left: 30%;
  }
  .footer {
    min-height: 160px;
  }
  body {
    line-height: 1;
  }
  h4 {
    font-size: 15px;
    line-height: 1.5
  }
}