chrome/browser/resources/ntp/apps.css

/* Apps */

#apps-content {
  position: relative;
  max-width: 780px;  /* (124 + margin * 2) * 6 */
}

html.apps-promo-visible #apps-content {
  max-width: 650px; /* (124 + margin * 2) * 5 */
}

#apps-maxiview {
  overflow: hidden;
}

/*
We don't need to do anything for html.apps-promo-visible because there is
enough extra space in the small grid layout.
*/
.small-layout #apps-content,
.small-layout html.apps-promo-visible #apps-content {
  max-width: 520px;  /* (124 + margin * 2) * 4 */
}

.app,
.app[new=installed] {
  box-sizing: border-box;
  -webkit-perspective: 400;
  border-radius: 10px;
  color: black;
  margin: 5px 3px;
  position: absolute;
  height: 136px;
  width: 124px; /* 920 / 7 - margin * 2 */
  visibility: hidden;
}

.app a {
  border-radius: 10px;
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.app a {
  -webkit-transition: background-color .5s;
  background: rgba(255, 255, 255, 0) /* transparent white */
              no-repeat center 10px;
  background-size: 96px 96px;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 107%;
  overflow: hidden;
  padding: 111px 10px 10px;  /* 10 + 96 + 5 */
  text-align: center;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app .app-settings {
  background-color: transparent;
  background-position: center center;
  background-repeat: no-repeat;
  border: 0;
  height: 14px;
  padding: 0;
  position: absolute;
  right: 5px;
  top: 5px;
  width: 14px;
}

.app > .app-settings {
  -webkit-transition: opacity .3s;
  -webkit-transition-delay: 0;
  background-image: url(chrome://theme/IDR_BALLOON_WRENCH);
  opacity: 0;
}

.app > .app-settings:hover {
  -webkit-transition: none;
  background-image: url(chrome://theme/IDR_BALLOON_WRENCH_H);
}

.app:hover > .app-settings,
.app > .app-settings:focus {
  -webkit-transition-delay: .5s;
  opacity: .9;
}

.app.dragging > .app-settings {
  background-image: none;
}

.app.dragging {
  opacity: .7;
}

#apps-content[launcher-animations=true] .app {
  -webkit-transition: top .2s, left .2s, right .2s, opacity .2s;
}

#apps-content.visible .app {
  visibility: visible;
}

@-webkit-keyframes bounce {
  0% {
    -webkit-transform: scale(0, 0);
  }

  60% {
    -webkit-transform: scale(1.2, 1.2);
  }

  100% {
    -webkit-transform: scale(1, 1);
  }
}

html[install-animation-enabled=true] .app[new=new] {
  opacity: 0;
}

html[install-animation-enabled=true] .app[new=installed] {
  -webkit-animation: bounce .5s ease-in-out;
  -webkit-transition: opacity .5s;
}

.app.web-store-entry > a {
  background-image: url("chrome://theme/IDR_WEBSTORE_ICON");
}

menu > button.default {
  font-weight: bold;
}

#apps-promo {
  display: none;
}

html.apps-promo-visible #apps-promo {
  background: url('chrome://theme/IDR_WEBSTORE_ICON') no-repeat;
  height: 125px;
  -webkit-padding-start: 125px;
  display: table-cell;
  vertical-align: text-bottom;
}

#apps-promo-heading {
  font-size: 115%;
  font-weight: bold;
  margin-bottom: 5px;
  -webkit-margin-start: 3px;
}

#apps-promo-hide {
  -webkit-appearance: none;
  -webkit-transition: opacity .15s;
  background-color: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 90%;
  text-decoration: underline;
  margin-top: 2px;
}

html[dir=rtl] #apps-promo-hide {
  float: left;
}

/*
We position the web store entry all by its lonesome in the top of the rightmost
column when there is at least one full row of apps. Note that this is similar,
but different than its position during promo (html.apps-promo-visible), so we
never set .loner while the promo is running.
*/
.app.web-store-entry.loner {
  position: absolute;
  left: 100%;
  top: 0;
}

html[dir=rtl] .app.web-store-entry.loner {
  right: 100%;
}

.g-button-basic {
  display: inline-block;
  border-width: 6px 10px 12px 6px;
  -webkit-border-image: url('g-button-chocobo.png') 6 10 12 6;
  font-size: 1.3em;
  color: #fff !important;
  text-decoration: none;
  font-weight: bold;
  text-align: center;
  padding: 2px 10px;
  white-space: nowrap;
}