.scrollup{
     width:60px;
     height:60px;
     position:fixed;
     display: block;
      filter: alpha(opacity=30);
     bottom:20px;
     right:20px;
     text-indent:-9999px;
     background: url('/downloads/icon_top.png') no-repeat;
     background-position: center center;
     background-repeat: no-repeat;
   	 font-size: 0;
      moz-transition: all 1s ease 0s;
      opacity: .3;
	  o-transition: all 1s ease 0s;
      transition: all 1s ease 0s;
	  webkit-transition: all 1s ease 0s;
     z-index: 9999;
}

.buta {
    padding: 3px 7px; /* Поля вокруг текста */
    color: #333; /* Цвет текста */
     -moz-border-radius: 5px; /* Радиус для Firefox */
     -webkit-border-radius: 5px; /* Радиус для Safari и Chrome */
    border-radius:  5px; /* Радиус для IE 9 */
    border: 1px solid #666; /* Параметры рамки */
    background: -moz-linear-gradient(#f2f2f2, #777, #404040, #252525);
    background: -webkit-gradient(linear, 0 0, 0  100%, from(#f2f2f2), to(#252525), color-stop(0.6, #777), color-stop(0.6,  #404040));
    color: #fff;
    border: 2px solid  #666;
   }