Сергей Наломенко

<div class="container" >
    <img src="./images/image1.jpg" />
    <div class="description" >Your description 1</div>
</div>
<div class="container" >
    <img src="./images/image2.jpg" />
    <div class="description" >Your description 1</div>
</div>
<div class="container" >
    <img src="./images/image3.jpg" />
    <div class="description" >Your description 1</div>
</div>

.container > .description { display:none; }
.container:hover > .description { display: block; }