*{
  padding:0;
  margin:0;
}
body{
  font-family: 'Source Sans Pro', sans-serif;
}
.nav-sidebar{
margin-top:100px ; 
}
 .row .col-md-12{
  margin-top: 100px;
}
.row .col-md-3{
  text-align: center;
  /*border:1px solid skyblue;*/
  padding:30px;
}
footer{
  width:100%;
  height:100px;
  background-color:black;
  text-align: center;
  opacity:0.7;
}
footer h1{
  padding-top: 30px;
}