CSS Selector for label bound to input

How about CSS 2 Attribute Selectors It is pretty compatible amongst browsers.

Example:

<style>
label[required=required]
{
color: blue;
}
</style>
<label required="required" for="one">Label:</label><input name="one" id="one" />

Also check this out.

This solution works in most modern browsers:

<style>

label > input[required="required"] {
    background: red; 
}

</style>
<label for="myField"><input required="required" id="myField" /></label>

you can use label[for="title"] where "title" is the ID of your input. Example:

<label for="title">Title</label>
<input type="text" id="title" name="title">

css:

label[for="title"] {
  color: blue;
}