body{
  background-color: #f4f4f4;
  color: #555;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6em;
  margin: 0;
}

.container{
  width: 80%;
  margin: auto;
  overflow: hidden;
}

#main-header{
  background-color: coral;
  color: #fff;
}

#navbar{
  background-color: #333;
  color: #fff;
}

#navbar ul{
  list-style: none;
  padding: 0;
}

#navbar li{
  display: inline;
}

#navbar a{
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  padding-right: 15px;
}

#showcase{
  background-image: url("../images/lights.jpg");
  min-height: 300px;
  text-align: center;
}

#showcase h1{
  font-size: 60px;
  color: #fff;
  line-height: 1.6em;
}

#main{
  float: left;
  width: 70%;
  padding: 0 30px;
  box-sizing: border-box;
}

#sidebar{
  float: right;
  width: 30%;
  padding: 0 30px;
  box-sizing: border-box;
}

#main-footer{
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

@media(max-width: 600px){
  #main{
    width: 100%;
    float: none;
  }

  #sidebar{
    width: 100%;
    float: none;
  }
}