In this tutorial we will see how to Highlight Required Input Fields using CSS. :required CSS Selector is used for this purpose.
Table of Contents
:required Selector
The :required selector selects HTML form elements with required attribute. The :required selector only applies to the html form elements like input, select and textarea.
HTML Code
Simple HTML Code is given below, In this code both username and password are required elements while email is optional.
<form>
<label>Email:</label>
<input type="email">
<label>UserName:</label>
<input type="text" required>
<label>Password:</label>
<input type="password" required>
<input type="submit">
</form>
CSS Code
CSS code is given below, :required selector is used to change the border color of required elements while :optional selector is used for 1 optional input element.
input
{
display: block;
margin: 5px 0px;
}
:required
{
border: 1px solid #FF305D;
}
:optional
{
border: 1px solid #3075FF;
}
Demo
Video Tutorial
Watch video tutorial on Highlight Required Input Fields using CSS.
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