#install_button {background-color: rgba(0, 0, 0, 0.4);
                 position:fixed;
                top:25px;
                right:3px;
                padding-top:4px;
                text-align:center;                
                width:93px;
                height:15px;
                font-weight:900;
                font-size:13px;
                font-family: 'Source Sans Pro', sans-serif;
                color:#fff;
                z-index:999;
                cursor:pointer;
                opacity:1;
                 -webkit-border-radius: 2px;
            -moz-border-radius: 2px;
            border-radius: 2px;
            {block:ifbuttomfollowtransparent}
            opacity: 0.5;
            {/block:ifbuttomfollowtransparent}
            }
#install_button {box-shadow: 0 0 0px rgba(0, 0, 0, 0.9);}           
#install_button a {color:#fff;}            
#install_button:hover {opacity:0.9; }