IE Conditional Tag

<!--[if IE 5.5000]>
You are using IE 5.5!
<![endif]-->

<!--[if IE 6]>
You are using IE 6!
<![endif]-->

Operator syntax  Description
! The "not" operator.
lt The "less than" operator.
lte The "less than or equal to" operator.
gt The "greater than" operator.
gte The "greater than or equal to" operator