ionic-framework/scss/_scaffolding.scss

/**
 * Scaffolding
 * --------------------------------------------------
 */

*,
*:before,
*:after {
  @include box-sizing(border-box);
}

a {
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: transparent;
}
img {
  -webkit-user-drag: none;
}

a, button {
  &:focus {
    outline: 0;
  }
}

body, .ionic-body {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  color: $base-color;
  word-wrap: break-word;
  font-size: $font-size-base;
  font-family: $font-family-base;
  line-height: $line-height-computed;
  text-rendering: optimizeLegibility;

  -webkit-font-smoothing: antialiased;

  -webkit-text-size-adjust: none;
          text-size-adjust: none;

  -webkit-tap-highlight-color: transparent;
  -webkit-user-drag: none;
  -webkit-user-select: none;
}

.content:before,
.content:after {
  display: block;
  overflow: hidden;
  height: 0;
  // Uncollapse content margin if child elements DO have an margin
  content: "\00a0"; /* No-break space character */
}
/* Force all relatively and absolutely positioned elements still render while scrolling
   Note: This is a bug for "-webkit-overflow-scrolling: touch" (via ratchet) */
.content > * {
  -webkit-transform: translateZ(0px);
          transform: translateZ(0px);
}

.content {
  position: absolute;
  width: 100%;
  height: 100%;
}

.scroll-content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
}

/**
 * Scroll is the scroll view component available for complex and custom
 * scroll view functionality.
 */
.scroll {
  position: absolute;
	z-index: 1;
	-webkit-tap-highlight-color: rgba(0,0,0,0);
	width: 100%;
  height: 100%;
	-webkit-transform: translateZ(0);
	-moz-transform: translateZ(0);
	-ms-transform: translateZ(0);
	-o-transform: translateZ(0);
	transform: translateZ(0);
	-webkit-touch-callout: none;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	-webkit-text-size-adjust: none;
	-moz-text-size-adjust: none;
	-ms-text-size-adjust: none;
	-o-text-size-adjust: none;
	text-size-adjust: none;
}

// Scroll refresher (for pull to refresh)
.scroll-refresher {
  display: none;
  overflow: hidden;
  height: 100px;
  margin-top: -100px;
}
.scroll-refresher-content {
  height: 100%;
  width: 100%;
  text-align: center;
  position: relative;
  //@include display-flex();
  //@include align-items(center);
}
.ionic-refresher-content {
  height: 100%;
  width: 100%;
  text-align: center;
  position: relative;
}
.ionic-refresher {
  // A custom refresher
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: $positive;
  position: absolute;
  left: 50%;
  margin-left: -5px;
  bottom: 25px;
}
.scroll-refreshing {
  -webkit-transition: height 0.1s ease-in-out;

  .ionic-refresher {
    -webkit-animation: refresher-pulsate 1.5s linear;
    -webkit-animation-iteration-count: infinite; 
  }
}

@-webkit-keyframes refresher-pulsate {
  0% {-webkit-transform: scale(2, 2); }
  50% {-webkit-transform: scale(1.5, 1.5); }
  100% {-webkit-transform: scale(2, 2); }
}

.overflow-scroll {
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

// Pad top/bottom of content so it doesn't hide behind .bar-title and .bar-tab.
// Note: For these to work, content must come after both bars in the markup
.has-header {
  top: $bar-height;
}

.has-subheader {
  top: $bar-height * 2;
}

.has-footer {
  bottom: $bar-height;
}

// Specify that a content area will have tabs
.has-tabs {
  bottom: 84px;
}

// A full screen section with a solid background
.pane {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  background-color: #fff;
}