/* Remove the navbar's default margin-bottom and rounded borders */ 
.navbar {
  margin-bottom: 0;
  border-radius: 0;
}

/* Set height of the grid so .sidenav can be 100% (adjust as needed) */
.row.content {height: 100%}

/* Set gray background color and 100% height */
.sidenav {
  padding-top: 20px;
  background-color: #f1f1f1;
  height: 100%;
}

/* Set black background color, white text and some padding */
footer {
  background-color: #555;
  color: white;
  padding: 2px;
}

/* On small screens, set height to 'auto' for sidenav and grid */
@media screen and (max-width: 767px) {
  .sidenav {
	height: auto;
	padding: 15px;
  }
  .row.content {height:auto;} 
}

    .btn-file {
        position: relative;
        overflow: hidden;
    }
    .btn-file input[type=file] {
        position: absolute;
        top: 0;
        right: 0;
        min-width: 100%;
        min-height: 100%;
        font-size: 100px;
        text-align: right;
        filter: alpha(opacity=0);
        opacity: 0;
        outline: none;
        background: white;
        cursor: inherit;
        display: block;
    }