odd alignment within spans/div

odd alignment within spans/div

I have a span that contains text as well as an input field. I was
wondering if it would be possible to have the text align to the left and
the input field align to the right.
<span class="textBox">NAME: <input type="text" id="NAME"/></span>
.textBox{
display:inline-block;
width:450px
}
first an example of my span then the current CSS style for it.