xxxxxxxxxx
bg-bottom background-position: bottom;
bg-center background-position: center;
bg-left background-position: left;
bg-left-bottom background-position: left bottom;
bg-left-top background-position: left top;
bg-right background-position: right;
bg-right-bottom background-position: right bottom;
bg-right-top background-position: right top;
bg-top background-position: top;
xxxxxxxxxx
.bg-bottom --> background-position: bottom;
.bg-center --> background-position: center;
.bg-left --> background-position: left;
.bg-left-bottom --> background-position: left bottom;
.bg-left-top --> background-position: left top;
.bg-right --> background-position: right;
.bg-right-bottom --> background-position: right bottom;
.bg-right-top --> background-position: right top;
.bg-top --> background-position: top;