#banner_01{
height: 260px;
}

article{
padding: 4.2em 10px 10px 10px;
}

#banner_02{
background: url(../images/backgrounds/banner_02.jpg) fixed center bottom;
}

#event_listing{
grid-template-columns: 48% 48%;
}

#topic_listing{
grid-template-columns: auto;
}

.event_item img{
max-width: 300px;
}

.menu_text{
position: absolute;
margin-left: -9999px;
}

#header li{
padding: 0;
}

#header_nav{
display: none;
margin: 0;
padding: 0;
}

#hidden_nav{
display: block;
position: relative;
z-index: 10;
float: right;
margin-top: -20px;
}

#hidden_nav li#hamburger_menu{
display: block;
width: 55px;
height: 55px;
background: url(../images/menu_burger.png) no-repeat;
}

#hidden_nav li ul{
display: none;
padding: 0;
margin: 0 0 0 -400px;
}

#hidden_nav li:hover ul{
display: block;
border: 4px solid #1a83c6;
border-radius: 10px;
background: #ffffff;
font-size: 150%;
height: 11.5em;
width: 420px;
}

#hidden_nav li:hover li{
display: block;
margin: 5px 0;
}