RWD Denver Training mobile-first rough example

gistfile1.css

html, body {
  padding: 0;
}

html {
  -webkit-box-shadow: inset 0px 0px 55px 0px rgba(0, 0, 0, 0.2);
  -moz-box-shadow: inset 0px 0px 55px 0px rgba(0, 0, 0, 0.2);
  box-shadow: inset 0px 0px 55px 0px rgba(0, 0, 0, 0.2);
}

header {
  border-bottom: 2px solid #333;
  color: #ccc;
  position: relative;
}

header h1 {
  padding: 1em 0 0.25em 0;
  font-family: "Times New Roman", "Times", serif;
  text-align: left;
  color: #666;
  font-weight: normal;
}

h2 {
  font-size: 2em;
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.5em; 
}

nav {
  margin: 0;
  border-top: 1px solid #ccc;
}

nav ul {
  margin: 0;
  padding: 0;
}

nav ul li {
  list-style: none;
}

nav a,
nav a:visited {
  display: block;
  float: left;
  width: 33.335%; /* round up to simulate infinite decimal repeater */
  font-weight: bold;
  color: #6C8C6E;
  text-align: center;
  padding: .75em 0;
  text-decoration: none;
}

nav ul li a:hover {
  background: #6c8c6e;
}

nav ul li:hover a {
  color: #eee;
  text-shadow: 1px 1px 1px #49593f;
}

div.bio-info {
  clear: both;
  background-color: #Abbf8f;
  padding: 1em;
  margin-left: 2em;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
}

div.bio-info:hover {
  background-color: #fefefe;
  -webkit-box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.35);
  -moz-box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.35);
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.35);
}

  img.photo {
    width: 100%;
    background-color: #fefefe;
    padding: 10px;
  }


#main {
  clear: both;
  padding: 1em;
  min-height: 300px;
  border-bottom: 1px #555 dotted;
  margin-bottom: 5px;
}

#main p,
#main blockquote {
  overflow: hidden;
  line-height: 1.5em;
}

#main blockquote {
  border-left: 5px solid #aaa;
  padding-left: 20px;
}

footer {
  display: block;
  margin-bottom: 2em;
  padding: 1em;
  background: #666;
  color: #eee;
  text-shadow: 1px 1px 1px #000;
  -webkit-border-bottom-right-radius: 5px;
  -webkit-border-bottom-left-radius: 5px;
  -moz-border-radius-bottomright: 5px;
  -moz-border-radius-bottomleft: 5px;
  border-bottom-right-radius: 5px;
  border-bottom-left-radius: 5px;
}

img.thumbnail {
  clear: both;
  width: 100%;
}



@media screen and (min-width: 768px) {

  #container {
    width: 768px;
    margin: 0 auto;
  }
  
  div.bio-info {
    width: 300px;
    float: right;
  }

  img.photo {
    width: 280px;
    background-color: #fefefe;
    padding: 10px;
  }


  div.bio-info dl {}
  
  div.bio-info dl dt {
    float: left;
    clear: left;
    width: 30%;
    text-align: right;
    margin-right: 1em;
    font-weight: 700;
  }
  
  div.bio-info dl dd {
    float: left;
    margin: 0;
    padding: 0;
  }



  img.thumbnail {
    width: 140px;
  }
  img.floatleft {
    float: left;
    margin: 0 20px 20px 0;
  }
  img.floatright {
    float: right;
    margin: 0 0 20px 20px;
  }

}