#social{position:fixed;left:0px;top:25%;width:110px;height:400px;}
#social .social_item{}
#social .social_item:hover{background-repeat:no-repeat;background-position:0px top;transition-duration:0.6s;opacity:1;}
#social .social_item a{width:110px;height:77px;background-image:url('../img/social/fb_full.png');background-repeat:no-repeat;background-position:-50px top;transition-duration:0.6s;opacity:0.5;display:block;text-decoration:none;}
#social .social_item a:hover{width:110px;height:77px;background-repeat:no-repeat;background-position:0px top;transition-duration:0.6s;opacity:1;}
#social .gp a{background-image:url('../img/social/gp_full.png');}
#social .vk a{background-image:url('../img/social/vk_full.png');}
#social .pi a{background-image:url('../img/social/pi_full.png');}
#social .tw a{background-image:url('../img/social/tw_full.png');}