gambar latar belakang dinamis sudut
<div [style.background-image]="'url(/img/' + item.img + ')'"
[style.width.px]="200" [style.height.px]="150p"></div>
GutoTrosla
<div [style.background-image]="'url(/img/' + item.img + ')'"
[style.width.px]="200" [style.height.px]="150p"></div>
[style.backgroundImage]="'url('+ imagSource +')'"