npm install whatever --save. 
<style>
.test {
position: relative;
width: 100px;
height: 20px;
outline: 1px solid red;
transition: all 2s linear;
}
.more {
position: absolute;
bottom: 0;
left: 45px;
color: blue;
transition: all 2s linear;
}
.test:hover {
height: 80px;
}
.test:hover > .more {
transform: rotate(180deg);
}
</style>
<body>
<div class="test">
<span class="more">↓</span>
</div>
</body>
display: flex
flex-flow: column nowrap;
justify-content: space-between;align-self: flex-end
<span><i class="fa fa-<?php echo get_post_meta( $post->ID, 'thumb_icon', true ); ?>"></i></span>