/indra/newview/skins/default/xui/en/floater_test_layout.xml

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<floater
 legacy_header_height="18"
 can_resize="true"
 height="500"
 layout="topleft"
 name="floater_test_layout"
 help_topic="floater_test_layout"
 translate="false"
 width="500">
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left="10"
     top="84"
     width="200">
        bottom 400 left 10
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="4"
     width="200">
        Bottom delta -20
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_delta="0"
     top_pad="64"
     width="200">
        bottom 300 left 10, should delta_bottom
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_pad="40"
     top_delta="0"
     width="200">
        bottom 300 left 250, should delta_left
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left="10"
     top="204"
     width="200">
        bottom 280 left 10, should absolute position
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left_pad="40"
     top_delta="-2"
     width="200">
        bottom 282 left 250, should delta_left and delta_bottom
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left="10"
     top="234"
     width="200">
        bottom 250 left 10, should absolute position
    </text>
    <text
     type="string"
     length="1"
     height="16"
     layout="topleft"
     left="250"
     top="244"
     width="200">
        bottom 240 left 250, should absolute position
    </text>
</floater>