.preview{width:100%}.preview .back-icon{position:fixed;left:1rem;top:1.5rem;z-index:999}.preview .back-icon .el-icon-arrow-left{font-size:1.5rem}.preview .detail-container{width:100%;background-color:#fff}.preview .detail-container .file-content{width:100%;height:100vh;box-sizing:border-box;overflow:hidden;overflow-y:scroll}