.centralizar-icone{vertical-align:middle;-webkit-box-align:center;-ms-flex-align:center;align-items:center;width:15px}[dir] .centralizar-icone{text-align:center!important}.btn-dialog{opacity:1;top:20px;width:0;height:0;transition:width .3s,height .3s,opacity .3s}[dir] .btn-dialog{-webkit-transition:width .3s,height .3s,opacity .3s}[dir=ltr] .btn-dialog{left:20px}[dir=rtl] .btn-dialog{right:20px}.btn-bottom{top:auto;bottom:-2px}[dir=ltr] .btn-bottom{left:50%;-webkit-transform:translate(-50%);transform:translate(-50%)}[dir=rtl] .btn-bottom{right:50%;-webkit-transform:translate(50%);transform:translate(50%)}