* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  background-color: #d9dcd6;
  font-size: 16px;
}

/* header */

  header {
    padding: 20px;
    font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
      "Lucida Sans", Arial, sans-serif;
    background-color: #2a607c;
    color: #ffffff;
  }

  h1 {
    display: inline-block;
    font-size: 48px;
  }

  .seo {                
    color: #d9dcd6;
  }

/* for the nav bar */

  nav {
    padding-top: 15px;
    margin-right: 20px;
    float: right;
    font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
    font-size: 20px;
  }

  ul {
    list-style-type: none;
  }

  li {
    display: inline-block;
    margin-left: 25px;
  }

  a {
    color: #ffffff;
    text-decoration: none;
  }

/* the background image of the site */

.main-image {
  height: 800px;
  width: 100%;
  margin-bottom: 25px;
  background-image: url("../images/digital-marketing-meeting.jpg");
  background-size: cover;
  background-position: center;
}

/* the main content of the page */

.main-content {
  width: 75%;
  display: inline-block;
  margin-left: 20px;
}

#float-right {
  float: right;
  margin-left: 30px;
}

.horizontal-card {
  margin-bottom: 20px;
  padding: 50px;
  height: 300px;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
  background-color: #0072bb;
  color: #ffffff;
}

.horizontal-card img {
  max-height: 200px;
  float: left;
  margin-right: 30px;
}

.horizontal-card h2 {
  margin-bottom: 20px;
  font-size: 36px;
}

/* this is the benefits section on the right side */

aside {
  margin-right: 20px;
  padding: 20px;
  clear: both;
  float: right;
  width: 20%;
  height: 100%;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
  background-color: #2589bd;
}

.vertical-card {
  margin-bottom: 32px;
  color: #ffffff;
}

.vertical-card h3 {
  margin-bottom: 10px;
  text-align: center;
}

.vertical-card img {
  display: block;
  margin: 10px auto;
  max-width: 150px;
}

/* footer */
.footer {
  padding: 30px;
  clear: both;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  text-align: center;
}

.footer h2 {
  font-size: 20px;
}