<!DOCTYPE html>
<style>
div {
margin: 50px;
border-width: 10px;
border-style: solid;
width: 100px;
height: 100px;
}
</style>
<div id="fixed-color" style="border-color: blue"></div>
<div id="current-color" style="border-color: green"></div>
<!DOCTYPE html>
<style>
div {
margin: 50px;
border-width: 10px;
border-style: solid;
width: 100px;
height: 100px;
}
</style>
<div id="fixed-color" style="border-color: blue"></div>
<div id="current-color" style="border-color: green"></div>