gecko/browser/base/content/newtab/newTab.css

:root {
  -moz-user-focus: normal;
}

input[type=button] {
  cursor: pointer;
}

/* SCROLLBOX */
#newtab-scrollbox {
  display: -moz-box;
  position: relative;
  -moz-box-flex: 1;
}

#newtab-scrollbox:not([page-disabled]) {
  overflow: auto;
}

/* TOGGLE */
#newtab-toggle {
  position: absolute;
  top: 12px;
  right: 12px;
}

#newtab-toggle:-moz-locale-dir(rtl) {
  left: 12px;
  right: auto;
}

/* MARGINS */
#newtab-vertical-margin {
  display: -moz-box;
  position: relative;
  -moz-box-flex: 1;
  -moz-box-orient: vertical;
}

#newtab-margin-top {
  min-height: 50px;
  max-height: 80px;
  -moz-box-flex: 1;
}

#newtab-margin-bottom {
  min-height: 40px;
  max-height: 100px;
  -moz-box-flex: 1;
}

#newtab-horizontal-margin {
  display: -moz-box;
  -moz-box-flex: 5;
}

.newtab-side-margin {
  min-width: 40px;
  max-width: 300px;
  -moz-box-flex: 1;
}

/* GRID */
#newtab-grid {
  display: -moz-box;
  -moz-box-flex: 5;
  -moz-box-orient: vertical;
  min-width: 600px;
  min-height: 400px;
  -moz-transition: 100ms ease-out;
  -moz-transition-property: opacity;
}

#newtab-grid[page-disabled] {
  opacity: 0;
}

#newtab-grid[locked],
#newtab-grid[page-disabled] {
  pointer-events: none;
}

/* ROWS */
.newtab-row {
  display: -moz-box;
  -moz-box-orient: horizontal;
  -moz-box-direction: normal;
  -moz-box-flex: 1;
}

/* CELLS */
.newtab-cell {
  display: -moz-box;
  -moz-box-flex: 1;
}

/* SITES */
.newtab-site {
  position: relative;
  -moz-box-flex: 1;
  -moz-transition: 100ms ease-out;
  -moz-transition-property: top, left, opacity;
}

.newtab-site[frozen] {
  position: absolute;
  pointer-events: none;
}

.newtab-site[dragged] {
  -moz-transition-property: none;
  z-index: 10;
}

/* LINK + THUMBNAILS */
.newtab-link,
.newtab-thumbnail {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
}

.newtab-thumbnail {
  opacity: .8;
  -moz-transition: opacity 100ms ease-out;
}

.newtab-thumbnail[dragged],
.newtab-link:-moz-focusring > .newtab-thumbnail,
.newtab-site:hover > .newtab-link > .newtab-thumbnail {
  opacity: 1;
}

/* TITLES */
.newtab-title {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* CONTROLS */
.newtab-control {
  position: absolute;
  top: 4px;
  opacity: 0;
  -moz-transition: opacity 100ms ease-out;
}

.newtab-control:-moz-focusring,
.newtab-site:hover > .newtab-control {
  opacity: 1;
}

.newtab-control[dragged] {
  opacity: 0 !important;
}

@media (-moz-touch-enabled) {
  .newtab-control {
    opacity: 1;
  }
}

.newtab-control-pin:-moz-locale-dir(ltr),
.newtab-control-block:-moz-locale-dir(rtl) {
  left: 4px;
}

.newtab-control-block:-moz-locale-dir(ltr),
.newtab-control-pin:-moz-locale-dir(rtl) {
  right: 4px;
}

/* DRAG & DROP */

/*
 * This is just a temporary drag element used for dataTransfer.setDragImage()
 * so that we can use custom drag images and elements. It needs an opacity of
 * 0.01 so that the core code detects that it's in fact a visible element.
 */
.newtab-drag {
  width: 1px;
  height: 1px;
  background-color: #fff;
  opacity: 0.01;
}