Código CSS :
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/* Smartphones (portrait and landscape) ----------- */
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@media only screen
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and (min-device-width : 320px)
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and (max-device-width : 480px) {
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/* Styles */
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}
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/* Smartphones (landscape) ----------- */
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@media only screen
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and (min-width : 321px) {
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/* Styles */
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}
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/* Smartphones (portrait) ----------- */
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@media only screen
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and (max-width : 320px) {
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/* Styles */
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}
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/* iPads (portrait and landscape) ----------- */
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@media only screen
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and (min-device-width : 768px)
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and (max-device-width : 1024px) {
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/* Styles */
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}
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/* iPads (landscape) ----------- */
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@media only screen
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and (min-device-width : 768px)
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and (max-device-width : 1024px)
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and (orientation : landscape) {
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/* Styles */
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}
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/* iPads (portrait) ----------- */
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@media only screen
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and (min-device-width : 768px)
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and (max-device-width : 1024px)
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and (orientation : portrait) {
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/* Styles */
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}
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/* Desktops and laptops ----------- */
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@media only screen
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and (min-width : 1224px) {
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/* Styles */
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}
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/* Large screens ----------- */
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@media only screen
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and (min-width : 1824px) {
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/* Styles */
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}
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/* iPhone 4 ----------- */
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@media
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only screen and (-webkit-min-device-pixel-ratio : 1.5),
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only screen and (min-device-pixel-ratio : 1.5) {
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/* Styles */
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}
Gracias por su apoyo.
