.navig_bar {
z-index:1000;
height: 309px;
position: fixed;
left: -35px;
top:70%;}

.navig_bar ul {
position: absolute;
width: 40px;
height: 137px;
bottom: 120px;}

.navig_bar ul li {
margin-bottom: 3px;
list-style-type: none;
cursor: pointer;
width: 40px;
background: #c6c6c6 url("/navbar/strelki.png") no-repeat;}

.navig_bar ul li.nb_top {height: 40px;background-position:  10px 0px;}
.navig_bar ul li.nb_back {height: 57px;background-position:  10px -40px;}
.navig_bar ul li.nb_bottom {height: 40px;background-position:  10px -97px;}
.navig_bar ul li:hover {background-color: #dadada;}
.navig_bar ul li.nb_back a {display: block;width: 40px;height: 57px;}