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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/cssom/cssstyledeclaration-setter-form-controls.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSSOM test: no side effects from setting "height"</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<p>
Historically, the Apple Safari web browser has added an "intrinsic margin" to
form controls which do not specify a `height`. It removed this margin following
modification of the `height`. <a
behavior was identified as a source of confusion for web developers.</a>
</p>
<script>
function makeElement(tagName) {
var element = document.createElement(tagName);
document.body.appendChild(element);
return element;
}
function makeInputElement(type) {
var element = makeElement('input');
element.setAttribute('type', type);
return element;
}
function measure(element) {
var computed = getComputedStyle(element);
return [computed.marginTop, computed.marginBottom];
}
test(function() {
var element = makeInputElement('text');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'text input element');
test(function() {
var element = makeInputElement('button');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'button input element');
test(function() {
var element = makeInputElement('submit');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'submit input element');
test(function() {
var element = makeInputElement('radio');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'radio input element');
test(function() {
var element = makeInputElement('checkbox');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'checkbox input element');
test(function() {
var element = makeElement('textarea');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'textarea element');
test(function() {
var element = makeElement('select');
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'select element');
test(function() {
var element = makeElement('button')
var initial = measure(element);
element.style.setProperty('height', '12px');
assert_array_equals(measure(element), initial);
}, 'button element');
</script>