Form 0 0 437 352 Form ::item { border: 1px solid black; background-color: purple; } ::item {margin-left: 20px; } QAbstractItemView { selection-background-color: red; show-decoration- selected: 0; } ::item:selected { background-color: yellow; } 1 New Column New Item New Item New Item New Subitem New Subitem New Item New Item New Row New Row New Row New Row New Row New Column New Column New Column New Column mljkh mh mjl h jlh mjklh mjklh mlhj mjlh m mlhj lmhj mlkj l mlkj mlkj lmkj mlkhj mlh mlkj lmkj mlkj lmkj