:out-of-range CSS pseudo-classThe :out-of-range CSS pseudo-class represents an <input> element whose current value is outside the range limits specified by the min and max attributes.
label {
display: block;
margin-top: 1em;
}
input:out-of-range {
background-color: orangered;
}<form>
<label for="amount">How many tickets? (You can buy 2-6 tickets)</label>
<input id="amount" name="amount" type="number" min="2" max="6" value="4" />
<label for="dep">Departure Date: (Whole year 2022 is acceptable)</label>
<input
id="dep"
name="dep"
type="date"
min="2022-01-01"
max="2022-12-31"
value="2025-05-05" />
<label for="ret">Return Date: (Whole year 2022 is acceptable)</label>
<input id="ret" name="ret" type="date" min="2022-01-01" max="2022-12-31" />
</form>This pseudo-class is useful for giving the user a visual indication that a field's current value is outside the permitted limits.
Note: This pseudo-class only applies to elements that have (and can take) a range limitation. In the absence of such a limitation, the element can neither be "in-range" nor "out-of-range."
:out-of-range {
/* ... */
}<form action="" id="form1">
<p>Values between 1 and 10 are valid.</p>
<ul>
<li>
<input
id="value1"
name="value1"
type="number"
placeholder="1 to 10"
min="1"
max="10"
value="12" />
<label for="value1">Your value is </label>
</li>
</ul>
</form>li {
list-style: none;
margin-bottom: 1em;
}
input {
border: 1px solid black;
}
input:in-range {
background-color: rgb(0 255 0 / 25%);
}
input:out-of-range {
background-color: rgb(255 0 0 / 25%);
border: 2px solid red;
}
input:in-range + label::after {
content: "okay.";
}
input:out-of-range + label::after {
content: "out of range!";
}