.nivoSlider {
   
width:auto !important;
  height:185px !important;
    
}
.WaGadgetMenuHorizontal .menuInner ul ul li > .item > a {
    font: 12px/18px "Open Sans";
    padding: 0px 0px;
}


.WaGadgetMenuHorizontal .menuInner ul.firstLevel > li > .item > a{
	font: 15px/16px "Open Sans";
    height: 18px;
    padding: 10px 18px;
}
.WaGadgetMenuHorizontal .menuInner ul.firstLevel > li.dir > .item > a::after {
    background: url("/BuiltTheme/bookshelf_textbook.v3.0/3af2797f/images/icon_set.png") no-repeat scroll 0 -1945px rgba(0, 0, 0, 0);
    bottom: 6px;
    height: 11px;
}

.WaGadgetMenuHorizontal.menuStyle004 .menuInner ul.firstLevel  li.sel .item  a{background:#787878!important;}

.item  a:hover{background:#787878!important; box-shadow:none!important;}

.item:hover > a{background:#787878!important; box-shadow:none!important;}
.WaGadgetMenuHorizontal .menuInner ul.firstLevel > li.dir > .item > a::after, .WaGadgetMenuHorizontal .menuInner ul ul li.dir > .item > a::after{ background:none !important;}

/* Style the buttons that are used to open and close the accordion panel */
.accordion {
  background-color: #183457;
  color: rgb(255, 255, 255);
  cursor: pointer;
  padding: 18px;
  width: 100%;
  text-align: left;
  border: none;
  outline: none;
  transition: 0.4s;
}

/* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
.active, .accordion:hover {
  background-color: #F48D1D;
}

/* Style the accordion panel. Note: hidden by default */
.panel {
  padding: 0 18px;
  background-color: white;
  text-color: #183457;
  display: none;
  overflow: hidden;
}



.column {
  
  float: left;
  width: 50%;
  column-gap: 80px;
  
}


/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;

}

/* Responsive layout - when the screen is less than 600px wide, make the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .column {
    width: 100%;
  }
}

<style>
    /*Style inserted here will overide main stylesheet*/
    #SpSubHead {
        display: none;
    }
    #sp-main {
        width: 100%;
        padding-top: 0px;
    }
    #sp-main #left {
        padding-left: 0px;
        padding-right: 0px;
        margin-top: 0px;
    }
    #SpContent_Container {
        padding: 0px;
    }
    #SpContent_Container .calloutbox {
        display: none;
    }
    .addthis_toolbox {
        display: none;
    }
    #SpContent_Container .calloutbox {
        display: none;
    }
    #sp-main::before {
        display: none;
    }
    .topTitleOut {
        background-color: #005da9; no-repeat scroll center center / cover;
        color: #fff;
        font-weight: bold;
        margin-bottom: 0px;
        text-align: center;
        padding: 20px 0px;
        text-shadow: 0 0 3px rgba(0, 0, 0, .3);
        text-transform: uppercase;
        font-size: 40px;
    }
    .bottomcontentarea-out {
        display: none;
    }
  
 #grid {
  display: grid;
  height: 100px;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 100px;
  column-gap: 20px;
}

#grid > div {
  border: 1px solid green;
  background-color: lime;
}