T5.3: unable to change color of beaneditor border

[George Ludwig]

I'm want to change the border color of all the beaneditors to blue, so I
added this to my layout.css:

DIV.t-beaneditor {
    background: none repeat scroll 0 0 #FFFFCC;
    border: 2px outset blue;
    display: block;
    font-family: "Trebuchet MS",Arial,sans-serif;
    padding: 2px;
}

However, it remains brown. When I inspect the page using FireBug, I see
this from default.css line 159:
DIV.t-beaneditor {
    background: none repeat scroll 0 0 #FFFFCC;
    border: 2px outset brown;
    display: block;
    font-family: "Trebuchet MS",Arial,sans-serif;
    padding: 2px;
}

Just after that is my entry from layout.css, however all the entries are
lined out.

Is there something obvious that I'm missing?

-George