body {
  width: 90%;
  
  margin: 0 auto;}

  #content {overflow: auto;}
  #nav, #footer {
    margin: 1%;}
   
    .column1, .column2, .column3 {
      width: 31.3%;
      float: left;
      margin: 1%;
       }

#footer{

  margin-top: auto;
}

  

  #nav, #footer {
    background-color: #efefef;
    padding: 0.5em;}

    #footer{
     height: 5em;
    }
 


* {
  font-family: Arial, Verdana, sans-serif;
  color: #665544;
  text-align: center;}



/*Style the tab*/



.tab {
overflow: hidden;
border: 1px solid #ccc;
background:-color: #f1f1f1;

}


/* Style the buttons inside the tab */
.tab button {
  background-color: inherit;
  float: center;
  border: none;
  cursor: pointer;
  padding: 14px 16px;
  transitiion: 0.3s;
  font-size: 17px;

}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}




/*  .fa {
  padding: 2.1px;
  font-size: 20px;
  width: 40px;
  text-align: center;
  text-decoration: none;
}

/* Add a hover effect if you want */
/*.fa:hover {
  opacity: 0.7;*/
/*}*/

/* Set a specific color for each brand */

./*fa-linkedin {
  background: #007bb5;
  color: white;
     position: relative;

}*/

/* Facebook */
/*.fa-facebook {
  background: #3B5998;
  color: white;
  position: relative;

  
}*/

/* Twitter */
/*.fa-twitter {
  background: #55ACEE;
  color: white;
    position: relative;

}*/


/*.fa-youtube {
  background: #bb0000;
  color: white;
     position: relative;
 
}*/

/*.fa-instagram {
  background: #962fbf;
  color: white;
     position: relative;

}*/

/*.fa-github {
  background: #000000;
  color: white;
     position: relative;

}*/


/*img.align-left {
  display: block;
  maring: 0px;
position: center;
float: center;}
*/





/** {
  font-family: Arial, Verdana, sans-serif;
  color: #665544;
  text-align: center;}
#nav, #feature, .article, #footer {
  background-color: #efefef;
  margin-top: 20px;
  padding: 10px 0px 5px 0px;}
#feature, .article {
    height: 100px;}

li {
  display: inline;
  padding: 5px;}*/