.btn-box{width:100%;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}.course-offline-add-main .el-input,.course-offline-add-main .el-input-number{width:360px}.course-offline-add-main .el-textarea{width:500px}.course-offline-add-main .el-input-number .el-input__inner{text-align:left}.course-offline-add-main .editor-box{width:500px}.course-offline-add-main .el-button--mini{line-height:1!important}.course-offline-add-main .duty-list .duty-item{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;margin-bottom:10px}.course-offline-add-main .duty-list .duty-item .item-number{width:25px;text-align:right;margin-right:5px;font-weight:700;-ms-flex-negative:0;flex-shrink:0}.course-offline-add-main .duty-list .duty-item .el-textarea{margin-right:10px;width:500px!important}.course-offline-add-main .duty-list .duty-item .el-button{-ms-flex-negative:0;flex-shrink:0}