CodePen Embed - zGqxmP

 <div class="border"></div>

body > div
{
            width:483px;
            height:298px;
            background:#676470;
            transition:all 0.3s ease;
}


.border:hover
{
        box-shadow: inset 0 0 0 25px #53a7ea;
}

This Pen is owned by Mohammad Babazadeh on CodePen.

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