body{margin:0;padding:0}.header-back{-webkit-box-pack:center;-ms-flex-pack:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#e3e3e3;display:-webkit-box;display:-ms-flexbox;display:flex;height:65px;justify-content:center;position:fixed;right:0;top:0;width:65px;z-index:1}.header-back:hover{cursor:pointer}.header-back svg{height:40px;width:40px}.img-fluid{height:100%;width:100%}