Styling Checkboxes and Radio buttons with CSS
If you’re trying to use a style sheet and are wondering why you can’t change say the border around a checkbox the same way you’re changing the border around text boxes, don’t fear, because it’s not the same syntax. Even though they’re inputs, if you want to target them specifically, you need to use the syntax below. Using that, you can target any of the sytle options you may want to change.
border:5px solid #ffffff;