1 .frame { 2 position: absolute;3 height: 200px;4 width: 400px;5 background-color: silver;6 }7 8 .panel {9 position: absolute;10 top: 0;11 bottom: 0;12 right: 0;13 left: 0;14 15 background-color: orange;16 text-align: center;17 overflow-y: auto;18 19 transition: left 0.4s ease, right 0.4s ease;20 }21 22 .panel:hover { /* media query equivalent */23 left: 100px;24 right: 50px;25 }Enlace
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