body {
  margin: 0;
  }
  
/*Everything goes inside here.*/
.wrapper {
  width: 900px;
  margin: 0 auto;
  }
  
.sidebar-img, .footer, .title, .links, .box {
  margin-top: 25px;
  }
  
.title, .links, .footer {
  text-align: center;
  }
  
/*Navigation links.*/
.links ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
  }
  
.links li {
  display: inline-block;
  }

/*Some fancy code for fun, to add special characters around the navigation links. Change content to "" if you don't want these.*/
.links li:before {
  content: "「";
  }
  
.links li:after {
  content: "」 ∷ ";
  }
  
.links .last:after {
  content: "」";
  }
  
.links li:before, .links li:after {
  letter-spacing: 0.1em;
  }
  
/*Basic box code that is used for all content boxes on the page.*/
.box {
  border: 1px solid black;
  padding: 0.5em 1em;
  }
  
/*Goes inside the box class. Not given any style by default, but can be used for stuff like fancy borders.*/
.inner {
  
  }
  
/*Prevent image overflow.*/
.box img, .sidebar img {
  max-width: 100%;
  height: auto;
  }
  
/*Wrapper for the sidebar.*/
.sidebar {
  width: 200px;
  float: left;
  }
  
/*Container for the sidebar image.*/
.sidebar-image {
  border: 1px solid black;
  }
  
/*Remove extra padding line at the bottom of the image.*/
.sidebar-image img {
  display: block;
  }
  
/*This is where the title, navbar, and main content all go.*/
.main-wrapper {
  margin-left: 225px;
  }
  
/*Two columns by default. The "single-column" class can be added to make it one column.*/
.main {
  columns: 2;
  column-gap: 25px;
  }
  
/*Make sure boxes don't spread over multiple columns.*/
.main .box {
  display: inline-block;
  }
  
.single-column {
  columns: 1;
  }
  
.footer {
  margin-bottom: 25px;
  }
  
@media(max-width:915px) {
  .wrapper {    
    width: 95%;
    }
    
  .main-wrapper {
    width: calc(100% - 225px);
    }
  }
  
@media (orientation: portrait), (max-width: 480px) {
  .wrapper {
    width: 100%;
    }
  
  .main-wrapper, .sidebar, .footer {
    margin: 0 auto;
    width: 90%;
    }
  
  .sidebar {
    float: none;
    display: block;
    }

  .sidebar-image {
    margin: 0 auto;
    width: 33%;
    margin-top:25px;
    }

  .sidebar .sidebar-image img {
    width: 100%;
    }
    
  .footer {
    margin-bottom: 25px;
    }
  
  }