Muchas cosas que ver, muchas cosas que hacer y demasiado poco tiempo.

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.ig-b- { display: inline-block; }

.ig-b- img { visibility: hidden; }

.ig-b-:hover { background-position: 0 -60px; } .ig-b-:active { background-position: 0 -120px; }

.ig-b-v-24 { width: 137px; height: 24px; background: url(//badges.instagram.com/static/images/ig-badge-view-sprite-24.png) no-repeat 0 0; }

@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (min--moz-device-pixel-ratio: 2), only screen and (-o-min-device-pixel-ratio: 2 / 1), only screen and (min-device-pixel-ratio: 2), only screen and (min-resolution: 192dpi), only screen and (min-resolution: 2dppx) {

.ig-b-v-24 { background-image: url(//badges.instagram.com/static/images/ig-badge-view-sprite-24@2x.png); background-size: 160px 178px; } }