/* Global */
* {
  box-sizing: border-box;
}

.row::after {
  content: "";
  display: table;
  clear: both;
}

[class*="col-"] {
  float: left;
  padding: 25px;
}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

/* Style the body */
body {
  background-color: lightsteelblue;
  color: black;
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
}

/* Style the Header */
header {
  padding: 50px;
}

/* Style the Navigation */
nav {
  background-color: black;
  color: lightsteelblue;
  padding: 20px;
}

/* Style Navigation Links */
nav a {
  padding: 20px;
  text-decoration: none;
}

/* Style the link and visited link colors */
nav a:link, nav a:visited {
  color: lightsteelblue;
}

/* Style the link hover and active link colors */
nav a:hover, nav a:active {
  color: blue;
}

/* Style the Article */
.article {
  border: 1px solid black;
}

/* Style the Article Heading */
article h2 {
  padding: 10px;
}

/* Style the Article Paragraph */
article p {
  text-align: left;
}

img {
  max-width: 100%;
  height: auto;
}

video {
  max-width: 100%;
  height: auto;
}

/* Style the Footer */
footer {
  background-color: black;
  color: lightsteelblue;
  padding: 20px;
  width: 100%;
}
/* Responsive layout - makes the two articles stack on top of each other instead of next to each other */
@media screen and (max-width: 700px) and (min-width: 400px) {
  article {   
    width: 100%;
  }
}
/* Responsive layout - makes the navigation links stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  nav a { 
      display: block;
      width: 100%;
  }
}

/* For mobile phones: */
[class*="col-"] {
  width: 100%;
}

@media only screen and (min-width: 700px) {
  /* For tablets: */
  .col-s-1 {width: 8.33%;}
  .col-s-2 {width: 16.66%;}
  .col-s-3 {width: 25%;}
  .col-s-4 {width: 33.33%;}
  .col-s-5 {width: 41.66%;}
  .col-s-6 {width: 50%;}
  .col-s-7 {width: 58.33%;}
  .col-s-8 {width: 66.66%;}
  .col-s-9 {width: 75%;}
  .col-s-10 {width: 83.33%;}
  .col-s-11 {width: 91.66%;}
  .col-s-12 {width: 100%;}
}

@media only screen and (min-width: 768px) {
  /* For desktop: */
  .col-1 {width: 8.33%;}
  .col-2 {width: 16.66%;}
  .col-3 {width: 25%;}
  .col-4 {width: 33.33%;}
  .col-5 {width: 41.66%;}
  .col-6 {width: 50%;}
  .col-7 {width: 58.33%;}
  .col-8 {width: 66.66%;}
  .col-9 {width: 75%;}
  .col-10 {width: 83.33%;}
  .col-11 {width: 91.66%;}
  .col-12 {width: 100%;}
}

@media only screen and (orientation: landscape) {
  body {
    background-color: lightblue;
  }
}