.button_float{position:fixed;bottom:20px;left:calc(50% + 565px);border:0;text-decoration-color:none;margin:0;padding:0;width:64px;height:64px;line-height:64px;background-color:#444;color:cyan;font-family:verdanaregular;font-size:16px;font-weight:normal;text-align:center;letter-spacing:2px;border-radius:5px;border:solid 1px #20538d;text-shadow:0 -1px 0 rgba(0,0,0,0.4);box-shadow:inset 0 1px 0 rgba(255,255,255,0.4),0 1px 1px rgba(0,0,0,0.2);transition:all ease;transition-duration:.5s;cursor:pointer;z-index:1000;user-select:none}.button_float:hover{background-color:#666;color:yellow;border:solid 1px #3c3c3c;text-decoration:none;opacity:100%;cursor:pointer}.button_float:active{color:black;box-shadow:inset 0 1px 5px rgba(0,0,0,0.6);background:#888;border:solid 1px #303030;cursor:pointer;transform:translate(1px,1px);opacity:100%}@media(max-width:1310px){.button_float{left:auto;right:20px;opacity:30%}}