* {
  margin: auto;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

a {
  cursor: pointer;
}

@media only screen and (min-width: 601px) {
  .bd,
  .hd,
  .sld {
    width: 100%;
    height: auto;
    display: block;
    overflow: hidden;
    clear: both;
  }

  .hd {
    background: white;
    border-bottom: 1px solid #aaa;
  }

  .hd a {
    float: right;
    margin: 2rem auto;
    text-decoration: none;
    border-left: 1px solid #aaa;
    padding: 0 3rem;
    color: black;
  }

  .hd a i {
    margin-right: 10px;
  }

  .hd a:hover {
    color: blue;
    font-weight: bold;
  }

  .hd .logo {
    float: left;
    margin: 1rem 2rem;
    padding: 0;
    border: 1px hidden;
  }

  .hd .logo img {
    width: 150px;
    height: auto;
    display: block;
    overflow: hidden;
  }

  .sld {
    text-align: center;
    margin: 3rem auto;
  }

  .sld h3 {
    margin: 1rem auto;
  }

  .sld div {
    width: 30%;
    height: auto;
    display: inline-block;
    overflow: hidden;
    background: blue;
    color: white;
    border: 1px hidden;
    border-radius: 15px;
    margin: 1rem 1rem;
    padding: 5rem 0;
  }

  .sld p {
    font-size: 16pt;
    margin: 1rem auto;
  }

  .sld p i {
    font-size: 24pt;
    margin: 1rem;
    display: block;
  }

  .sld div a {
    width: auto;
    height: auto;
    display: block;
    overflow: hidden;
    background: white;
    text-decoration: none;
    margin: 1rem 50px;
    padding: 10px 25px;
    border-radius: 30px;
  }
}

@media only screen and (max-width: 600px) {
  .bd,
  .hd,
  .sld {
    width: 100%;
    height: auto;
    display: block;
    overflow: hidden;
    clear: both;
  }

  .hd {
    background: white;
    border-bottom: 1px solid #aaa;
  }

  .hd a {
    float: right;
    margin: 2rem auto;
    text-decoration: none;
    border-left: 1px solid #aaa;
    padding: 0 3rem;
    color: black;
  }

  .hd a i {
    margin-right: 10px;
  }

  .hd a:hover {
    color: blue;
    font-weight: bold;
  }

  .hd .logo {
    float: left;
    margin: 1rem 2rem;
    padding: 0;
    border: 1px hidden;
  }

  .hd .logo img {
    width: 100px;
    height: auto;
    display: block;
    overflow: hidden;
  }

  .sld {
    text-align: center;
    margin: 3rem auto;
  }

  .sld h3 {
    margin: 1rem auto;
  }

  .sld div {
    width: 90%;
    height: auto;
    display: block;
    overflow: hidden;
    background: blue;
    color: white;
    border: 1px hidden;
    border-radius: 15px;
    margin: 1rem auto;
    padding: 5rem 0;
  }

  .sld p {
    font-size: 16pt;
    margin: 1rem auto;
  }

  .sld p i {
    font-size: 24pt;
    margin: 1rem;
    display: block;
  }

  .sld div a {
    width: auto;
    height: auto;
    display: block;
    overflow: hidden;
    background: white;
    text-decoration: none;
    margin: 1rem 50px;
    padding: 10px 25px;
    border-radius: 30px;
  }
}