.navbar-default .navbar-collapse, .navbar-default .navbar-form {
    border-color: /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#d3d3d3+4,f7f7f7+94 */
background: #d3d3d3; /* Old browsers */
background: -moz-linear-gradient(top, #d3d3d3 4%, #f7f7f7 94%); /* FF3.6-15 */
background: -webkit-linear-gradient(top, #d3d3d3 4%,#f7f7f7 94%); /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom, #d3d3d3 4%,#f7f7f7 94%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#d3d3d3', endColorstr='#f7f7f7',GradientType=0 ); /* IE6-9 */;
}

.container-fluid {
    margin-right: auto;
    margin-left: auto;
    padding-left: 15px;
    padding-right: 15px;
    border-color: /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#d3d3d3+4,f7f7f7+94 */
background: #d3d3d3; /* Old browsers */
background: -moz-linear-gradient(top, #d3d3d3 4%, #f7f7f7 94%); /* FF3.6-15 */
background: -webkit-linear-gradient(top, #d3d3d3 4%,#f7f7f7 94%); /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom, #d3d3d3 4%,#f7f7f7 94%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#d3d3d3', endColorstr='#f7f7f7',GradientType=0 ); /* IE6-9 */;
}

@media only screen and (max-width: 600px) {
.big-font {
    
    font-size: 1em;

    

   
  }

@media screen and (max-width: 600px) {
  #hidden {
    visibility: hidden;
    clear: both;
    float: left;
    margin: 10px auto 5px 20px;
    width: 28%;
    display: none;
  }
}

img#optionalstuff {
    display: none;
  }
  }
}