added css for responsive_grid

css/themes.css

@@ -1389,6 +1389,171 @@ html .ui-filterable {
 .list li a {
   text-decoration: none;
 }
+/* responsive grid listview */
+/* default */
+.ui-listview.responsive_grid li .ui-btn .ui-li-icon-custom:after {
+    font-size: 1.25em;
+    padding: 0.5em 0;
+}
+/* First breakpoint is 48em (768px). 3 column layout. Tiles 250x250 pixels incl. margin at the breakpoint. */
+@media ( min-width: 48em ) {
+  .ui-listview.responsive_grid li {
+    float: left;
+    width: 30.9333%; /* 33.3333% incl. 2 x 1.2% margin */
+    height: 14.5em; /* 232p */
+    margin: .5625em 1.2%;
+  }
+  .ui-listview.responsive_grid li > .ui-btn {
+    -webkit-box-sizing: border-box; /* include padding and border in height so we can set it to 100% */
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    height: 100%;
+    border-bottom-width: 1px;
+  }
+  .ui-listview.responsive_grid li.ui-li-has-thumb .ui-li-thumb,
+  .ui-listview.responsive_grid li.ui-li-has-icon .ui-li-icon-custom {
+    height: auto; /* To keep aspect ratio. */
+    max-width: 100% !important;
+    max-height: none;
+  }
+  /* Overwrite custom icon width 22px */
+  .ui-listview.responsive_grid li span.ui-li-icon-custom {
+    width: 100% !important;
+  }
+  /* Make all list items and anchors inherit the border-radius from the UL. */
+  .ui-listview.responsive_grid li,
+  .ui-listview.responsive_grid li .ui-btn,
+  .ui-listview.responsive_grid .ui-li-thumb,
+  .ui-listview.responsive_grid .ui-li-icon-custom {
+    -webkit-border-radius: inherit;
+    border-radius: inherit;
+  }
+  /* Hide the icon */
+  .ui-listview.responsive_grid .ui-btn-icon-right:after {
+    display: none;
+  }
+  /* Enlarge custom icon */
+  .ui-listview.responsive_grid li .ui-btn .ui-li-icon-custom:after {
+    font-size: 3em;
+  }
+  /* Align center */
+  .ui-listview.responsive_grid li > .ui-btn {
+    text-align: center;
+  }
+  /* Make text wrap. */
+  .ui-listview.responsive_grid h1,
+  .ui-listview.responsive_grid p {
+    white-space: normal;
+    overflow: visible;
+    position: absolute;
+    left: 0;
+    right: 0;
+  }
+  /* Text position */
+  .ui-listview.responsive_grid h1 {
+    font-size: 1.25em;
+    margin: 0;
+    padding: .125em 1em;
+    bottom: 40%;
+  }
+  .ui-listview.responsive_grid p {
+    font-size: 1em;
+    margin: 0;
+    padding: 0 1.25em;
+    min-height: 40%;
+    bottom: 0;
+  }
+  /* Semi transparent background and different position if there is a thumb. The button has overflow hidden so we don't need to set border-radius. */
+  .ui-listview.responsive_grid .ui-li-has-thumb h1,
+  .ui-listview.responsive_grid .ui-li-has-thumb p,
+  .ui-listview.responsive_grid .ui-li-has-icon h1,
+  .ui-listview.responsive_grid .ui-li-has-icon p,{
+    background: #111;
+    background: rgba(0,0,0,.8);
+  }
+  .ui-listview.responsive_grid .ui-li-has-thumb h1,
+  .ui-listview.responsive_grid .ui-li-has-icon h1 {
+    bottom: 35%;
+  }
+  .ui-listview.responsive_grid .ui-li-has-thumb p,
+  .ui-listview.responsive_grid .ui-li-has-icon p{
+    min-height: 35%;
+  }
+  /* ui-li-aside has class .ui-li-desc as well so we have to override some things. */
+  .ui-listview.responsive_grid .ui-li-aside {
+    padding: .125em .625em;
+    width: auto;
+    min-height: 0;
+    top: 0;
+    left: auto;
+    bottom: auto;
+    /* Custom styling. */
+    background: #990099;
+    background: rgba(153,0,153,.85);
+    -webkit-border-top-right-radius: inherit;
+    border-top-right-radius: inherit;
+    -webkit-border-bottom-left-radius: inherit;
+    border-bottom-left-radius: inherit;
+    -webkit-border-bottom-right-radius: 0;
+    border-bottom-right-radius: 0;
+  }
+  /* If you want to add shadow, don't kill the focus style. 
+  .ui-listview.responsive_grid li {
+    -moz-box-shadow: 0px 0px 2px #111;
+    -webkit-box-shadow: 0px 0px 2px #111;
+    box-shadow: 0px 0px 2px #111;
+  }*/
+  /* Images mask the hover bg color so we give desktop users feedback by applying the focus style on hover as well.
+  .ui-listview.responsive_grid li > .ui-btn:hover {
+    -moz-box-shadow: 0px 0px 2px #33ccff;
+    -webkit-box-shadow: 0px 0px 2px #33ccff;
+    box-shadow: 0px 0px 2px #33ccff;
+  }
+  */
+  /* Animate focus and hover style, and resizing. */
+  .ui-listview.responsive_grid li,
+  .ui-listview.responsive_grid .ui-btn {
+    -webkit-transition: all 500ms ease;
+    -moz-transition: all 500ms ease;
+    -o-transition: all 500ms ease;
+    -ms-transition: all 500ms ease;
+    transition: all 500ms ease;
+  }
+}
+
+/* Second breakpoint is 63.75em (1020px). 4 column layout. Tiles will be 250x250 pixels incl. margin again at the breakpoint. */
+@media ( min-width: 63.75em ) {
+
+  /* Set a max-width for the last breakpoint to prevent too much stretching on large screens.
+  By setting the max-width equal to the breakpoint width minus padding we keep square tiles. */
+  .ui-listview.responsive_grid {
+    max-width: 62.5em; /* 1000px */
+    margin: 0 auto;
+  }
+  /* Enlarge custom icon */
+  .ui-listview.responsive_grid li .ui-btn .ui-li-icon-custom:after {
+    font-size: 4em;
+  }
+  /* Align center */
+  .ui-listview.responsive_grid li > .ui-btn {
+    text-align: center;
+  }
+  /* Overwrite custom icon width 22px */
+  .ui-listview.responsive_grid li span.ui-li-icon-custom {
+    width: 100% !important;
+  }
+  /* Because of the 1000px max-width the width will always be 230px (and margin left/right 10px),
+  but we stick to percentage values for demo purposes. */
+  .ui-listview.responsive_grid li {
+    width: 23%;
+    height: 230px;
+    margin: .625em 1%;
+  }
+}
+/* =========== */
+
+
 /* listview */
 html .ui-panel-inner .ui-listview .ui-li-divider {
   font-weight: bold;