website - CSS is hiding my dropdown menu -

i sure simple overlooking. top nav (dropdown) of website no longer visible. 100% sure has css applied.

.ultopmenu {margin:0; padding:0; width: 100%;  overflow:hidden;}  .litopmenu {width: 120px; height: 40px; float: left; margin:0 4px; list-style:none; display: inline;}  .divtopmenuinnercontainer {display: inline; overflow:hidden; height:500px;width:900px;}  .divtopmenuinnercontainer{position:relative;height:100%;width:80%;}  .divtopspliter {float:left; width:1px; height:40px; display:block; border-right:1px;}  .divtoptopspliter {float:left; width:30px; height:1px; display:block;}    .a {  	width: 120px;  	height:25px;  	line-height: 40px;  	text-decoration: none;  	text-align: center;  }    /* end of general */  .divtopsubmenuspliter {height:1px;width:auto;background:#0000; margin-top:1px; margin-bottom:1px;}      div.absolute {      position: relative;      right: 20px;      width: 200px;      height: 50px;        }

for dropdown navbar's css, may necessary tell visible.

try this:

 navbar{      visibility: visible;  } 

let me know if worked.