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

body {
    background-color: #d9dcd6;
}

/* Changed .header to header for semantic value */
header {
    padding: 20px;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    background-color: #2a607c;
    color: #ffffff;
}

/* Changed .header h1 to h1 for semantic value and clarity */
h1 {
    display: inline-block;
    font-size: 48px;
}

/* Changed .header h1 .seo to h1 .seo for semantic value and clarity */
h1 .seo {
    color: #d9dcd6;
}

/* Changed .header div to nav for semantic value*/
nav {
    padding-top: 15px;
    margin-right: 20px;
    float: right;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 20px;
}

/* Changed .header div ul to nav ul for semantic value*/
nav ul {
    list-style-type: none;
}

/* Changed .header div ul li to nav ul li for semantic value */
nav ul li {
    display: inline-block;
    margin-left: 25px;
}

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

/* Added a:hover to make links responsive to mouse hover */
a:hover {
    text-decoration: underline;
}

p {
    font-size: 16px;
}

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

.float-left {
    float: left;
    margin-right: 25px;
}

.float-right {
    float: right;
    margin-left: 25px;
}

/* Changed .content to main for semantic value */
main {
    width: 75%;
    display: inline-block;
    margin-left: 20px;
}

/* Changed .benefits to aside for semantic value */
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;
}

/* Condensed benefit-lead, benefit-brand, and benefit-cost to benefit for clarity (all shared same values)*/
.benefit {
    margin-bottom: 32px;
    color: #ffffff;
}

/* Condensed benefit-lead, benefit brand, and benefit-cost h3 to h3 for semantics and clarity (all shared same values; ignores benefit, only h3 on page) */
h3 {
    margin-bottom: 10px;
    text-align: center;
}

/* Condensed benefit-lead, benefit brand, and benefit-cost img to benefit for clarity (all shared same values)*/
.benefit img {
    display: block;
    margin: 10px auto;
    max-width: 150px;
}

/* Condensed search-engine, online-rep, and social-media to services for clarity (all shared same values) */
.services {
    margin-bottom: 20px;
    padding: 50px;
    height: 300px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    background-color: #0072bb;
    color: #ffffff;
}

/* Condensed search-engine, online-rep, and social-media img to services for clarity (all shared same values) */
.services img {
    max-height: 200px;
}

/* Condensed search-engine, online-rep, and social-media h2 to h2 for semantics and clarity (alls ahred same values; avoids footer h2) */
.services h2 {
    margin-bottom: 20px;
    font-size: 36px;
}

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

/* Changed .footer h2 to footer h2 for semantics and clarity (avoids .services h2) */
footer h2 {
    font-size: 20px;
}