.slide_box_facebook {
background: #ffffff;
position: fixed;
margin-top: -8%;
right: -292px;
top: 50%;
z-index: 1;
}

.slide_box_facebook a:focus { 
outline:none; 
}

.slide_button_facebook img:hover {
opacity: 0.8;
}

.slide_button_facebook {
-webkit-border-top-left-radius: 4px;
-webkit-border-bottom-left-radius: 4px;
-moz-border-radius-topleft: 4px;
-moz-border-radius-bottomleft: 4px;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
background: url(img/icon_facebook.jpg);
display: block;
height: 264px;
width: 40px;
position: absolute;
top: 0px;
text-indent: -9999px;
right: 38px;
z-index: 1000;
left: -40px;
}

.close {
-webkit-border-top-left-radius: 4px;
-webkit-border-bottom-left-radius: 4px;
-moz-border-radius-topleft: 4px;
-moz-border-radius-bottomleft: 4px;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
background: url(img/icon_facebook_close.jpg);
}

.facebook {
-webkit-border-top-left-radius: 4px;
-webkit-border-bottom-left-radius: 4px;
-moz-border-radius-topleft: 4px;
-moz-border-radius-bottomleft: 4px;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
background: url(img/icon_facebook.jpg);
}

.close:hover {
opacity: 0.7;
}