multiple :class values vue code example
Example 1: vue conditional class
<div :class="{ 'prop-name': boolVar }"></div>
Example 2: vue inline style bind
<div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div>
Example 3: vue class binding
<div v-bind:class="[{ active: isActive }, errorClass]"></div>