height property in CSS, similar to the width property. Here's an example that changes the height of an image to 20px:
img {
height: 20px;
}
height property to the h4 tag and set it to 25px.
h4 height property to a value of 25 pixels.
testString: assert($('h4').css('height') == '25px', 'Your code should change the h4 height property to a value of 25 pixels.');
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