[Thang Nguyen]

Dear,

I seen a css snippet is added to your site, you can try to remove it
in /themes/sns_kalolia/header.tpl
from line 71 to line 206

<style type="text/css">

#sns_custommenu ul.mainnav {
  margin: 0 !important;
  /*background: #3193c0 !important;*/
   background: #ffff !important;
  /*background-image: url(css-gradients-fallback/main-menu-bg.png) !important;
  background-image: -moz-linear-gradient(top,#4cb1e0 0%,#1675a1 100%) !important;
  background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0%,#4cb1e0),color-stop(100%,#1675a1)) !important;
  background-image: -webkit-linear-gradient(top,#4cb1e0 0%,#1675a1 100%) !important;
  background-image: -o-linear-gradient(top,#4cb1e0 0%,#1675a1 100%) !important;
  background-image: -ms-linear-gradient(top,#4cb1e0 0%,#1675a1 100%) !important;
  background-image: linear-gradient(top,#4cb1e0 0%,#1675a1 100%) !important;*/
  -moz-border-radius: 8px !important;
  -webkit-border-radius: 8px !important;
  border-radius: 8px !important;
  -moz-box-shadow: 0 1px 1px rgba(0,0,0,0.3) !important;
  -webkit-box-shadow: 0 1px 1px rgba(0,0,0,0.3) !important;
  box-shadow: 0 1px 1px rgba(0,0,0,0.3) !important;
  padding: 0 !important;
  list-style: none !important;
  text-align: center !important;
}

#sns_custommenu ul.mainnav li.level0 > a {
  display: block !important;
  padding: 5px 18px !important;
  position: relative !important;
  font-size: 16px !important;
  text-transform: uppercase !important;
  line-height: 20px !important;
  position: relative !important;
  /*color: #FAF4F4 !important;*/
  color:#000000 !important;
  margin: 10px 0 10px !important;
  padding: 0px 50px !important;
  font-weight:bold;
}
/*#sns_custommenu ul.mainnav li.level0:hover  {
	background:#1983af; /* Old browsers */
		/*background-image:-moz-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-webkit-gradient(linear,left top, left bottom,color-stop(0%,#34a2d0),color-stop(100%,#006791));
		background-image:-webkit-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-o-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-ms-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:linear-gradient(top,#34a2d0 0%,#006791 100%);*/
		/*color:#fff;
		}
		
		
		sns_custommenu ul.mainnav li.level0.custom-item:hover {
	background:#1983af; /* Old browsers */
		/*background-image:-moz-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-webkit-gradient(linear,left top, left bottom,color-stop(0%,#34a2d0),color-stop(100%,#006791));
		background-image:-webkit-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-o-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:-ms-linear-gradient(top,#34a2d0 0%,#006791 100%);
		background-image:linear-gradient(top,#34a2d0 0%,#006791 100%);*/
		/*color:#fff;
		}*/
		
#sns_custommenu ul.mainnav li.level0.custom-item
{
position:static !important;
/*border-right: 1px solid #1a8bb9 !important;*/
}

#sns_custommenu ul.mainnav li.level0 
{
	border: none !important;
  position: relative !important;
  display: inline-block !important;
  text-align: left !important;
  z-index: 9999 !important;
	/*border-right: 1px solid #1a8bb9 !important;*/
}

#sns_custommenu ul.mainnav li.level0 > div.fullwidth {
  
  background: rgb(10, 10, 10);
 /* border-radius: 11px;
  border:1px solid #3193c0; */
}
#sns_menu .fullwidth h4.title {
color:#FFFFFF !important;
  }
/*#sns_menu .fullwidth ul.menu > li:hover{
background:#3193c0;
}*/
#sns_menu .fullwidth ul.menu > li:hover a{
color:#09f;
}
#sns_menu .fullwidth ul.menu > li a{
 color:#929497;
 }
#sns_menu .fullwidth .col-sm-4 ul.menu {
width:100% !important;
}
#sns_menu .fullwidth  ul.menu {
width:33% !important;
 float:right !important;
 }
/*td li:hover {
background:#3193c0;

}*/
td li a {
color:#929497;
}
td li:hover a {
color:#09f;
}
#sns_custommenu ul.mainnav li.level0 > div.wrap_submenu {
  
  padding: 0;
    background: rgb(10, 10, 11);
}
/*#sns_custommenu ul.mainnav li.level0 > div.wrap_submenu li:hover {
background:#3193c0;
}*/
#sns_custommenu ul.mainnav li.level0 > div.wrap_submenu li a {
color:#929497;
}
#sns_custommenu ul.mainnav li.level0 > div.wrap_submenu li:hover a {
color:#09f !important;
}

.col-sm-6 p, .col-sm-6 img {
 display:none;
}

</style>

Thanks !