.callback_float{-ms-flex-pack:center;height:48px;-webkit-justify-content:center;justify-content:center;-webkit-box-pack:center;color:#fff;-webkit-box-align:center;-webkit-transition:all .2s ease;transition:all .2s ease;position:fixed;bottom:100px;text-align:center;-webkit-align-items:center;align-items:center;border-radius:50px;background:linear-gradient(180deg,#b87df9,#6a4ee1);cursor:pointer;left:12px;width:48px;-ms-flex-align:center;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;z-index:98}