Answers for "how to dynamically bind css attribute in vuejs"

vue inline style bind

<div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div>

vue if echo class

<div class="defaultclass" :class="condition?' conditionalclasstoappend':''"></div>

vue class binding

<div v-bind:class="[{ active: isActive }, errorClass]"></div>