The problem I\'m facing is:
You need a combination of positioning with right and a transform.
This is an usual idea for centering an element, adapted to your request:
.container {
width: 300px;
background-color: lime;
margin: 10px;
position: relative;
}
.item {
display: inline-block;
position: relative;
right: -100%;
transform: translateX(-100%);
transition: right 1s, transform 1s;
}
.container:hover .item {
right: 0%;
transform: translateX(0%);
}
<div class="container">
<div class="item">Item</div>
</div>
<div class="container">
<div class="item">Item long</div>
</div><div class="container">
<div class="item">Item longer longer</div>
</div>