textual/docs/examples/styles/content_align_all.tcss

#left-top {
    /* content-align: left top; this is the default implied value. */
}
#center-top {
    content-align: center top;
}
#right-top {
    content-align: right top;
}
#left-middle {
    content-align: left middle;
}
#center-middle {
    content-align: center middle;
}
#right-middle {
    content-align: right middle;
}
#left-bottom {
    content-align: left bottom;
}
#center-bottom {
    content-align: center bottom;
}
#right-bottom {
    content-align: right bottom;
}

Screen {
    layout: grid;
    grid-size: 3 3;
    grid-gutter: 1;
}

Label {
    width: 100%;
    height: 100%;
    background: $primary;
}