.objectOne, .objectTwo { /* We will now both be changed */
margin: 0 auto;
}
//HTML Code
<div class = 'firstClass secondClass'></div>
//CSS Code
.firstClass.secondClass {
}
To specify multiple classes, separate the class names with a space,
e.g. <span class="classA classB">.
This allows you to combine several CSS classes for one HTML element.