.loader{display:flex;justify-content:center;align-items:center;height:100vh;z-index:1060;position:fixed;top:0;left:0;right:0;}.loader .overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:1040;}.loader .spinner-border{z-index:1050;}