Add instagram theme for card

src/themes/instagram/views/card.overrides

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+/*******************************
+           Overrides
+*******************************/
+
+
+@import url(http://fonts.googleapis.com/css?family=Montserrat:700,400);
+
+.ui.cards > .card,
+.ui.card {
+  font-family: 'Montserrat';
+  font-size-adjust: 0.5;
+}

src/themes/instagram/views/card.variables

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+/*******************************
+             Card
+*******************************/
+
+/*-------------------
+         View
+--------------------*/
+
+@borderBoxShadow: none;
+@shadowBoxShadow: none;
+@boxShadow: none;
+
+
+@internalBorderColor: #EDEDEE;
+@border: 1px solid #EDEDEE;
+
+@contentPadding: 14px 20px;
+
+@metaColor: #A5A7AA;
+
+@linkHoverRaiseDistance: 0px;
+@linkHoverBoxShadow: none;
+@linkHoverBorder: 1px solid #D0D0D8;