<!doctype html>
<style>
div {
width: 100px;
height: 100px;
color: green;
}
#div_border {
border: 10px solid;
}
#div_outline {
outline: 10px solid;
margin: 20px 0 0 10px;
color: green;
}
</style>
<div id="div_border"></div>
<div id="div_outline"></div>