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The height and aspect ratio of the radio buttons are controlled using CSS variables. The radio buttons have a border and padding, and a radial gradient background that fades to transparent. When a radio button is selected, it is highlighted with a border color that matches the active color.

To make it required that a selection must be made, just click the required option under Radio Button field settings. Doesn't matter whether you do this on just one of the radio buttons in the group, or all of them, you'll get the same behavior of “one must be selected for this field to be valid”.

Steps to validate a radio button in React Create a common component. Let's create a reusable radio component using Bootstrap where we will pass all required fields. ... Create a form using the Radio component. Now it's time to use the Radio component in the main component for gender and status selection.

The HTML <form> element contains child elements that collect user input, such as <input type=”radio”>. To make a basic form with radio buttons in it, wrap your radio button grouping(s) in a <form> tag, and include a <button> of type submit at the bottom.

Use the “checked” property of the radio button element for validating a radio button using JavaScript. It gives a boolean value “true” if the radio button is selected/checked, if it gives “false”, it means the radio button is “not-checked”.

When radio buttons lay our horizontally, users can face problems scanning the option— it hard to tell with which label corresponds to which option: the one before the button or the one after. Vertical positioning of radio buttons is safer. Try to lay out your lists vertically, with one choice per line.

HTML <input type=”radio”> Radio Button input controls are created by using the “input” element with a type attribute having the value as “radio”. Example: In this example, we simply select the correct option from the given options using the radio button.

Create HTML Use a <form> element. Add three <label> elements with the radio input type, name and value attributes. Add the required attribute within the first <label>. Add an <input> with the type “submit”.