.wrap {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  overflow: hidden;
}

.wrap-inner {
  position: absolute;
  overflow: hidden;
  left: 0;
  width: 32rem;
  height: 61.9rem;
  top: 50%;
  transform: translate(0, -50%);
  -webkit-transform: translate(0, -50%);
}

/*消除ios点击阴影*/
html,
body {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  /* ios 滑动 */
  -webkit-overflow-scrolling: touch;
  -webkit-user-select: none;
}

/*消除ios动画抖动*/
* {
  -webkit-backface-visibility: hidden;
}

.clearfix:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}

.clearfix {
  *zoom: 1;
}

input {
  border: 0;
  outline: none;
}

input::-webkit-input-placeholder {
  /* placeholder颜色  */
  color: #222222;
}

.page {
  display: none;
  position: absolute;
}

.hd {
  background: rgba(0, 0, 0, 0.8);
}

/* loading-page */

.progress {
  background: #c0a353;
  border-radius: 0.25rem;
}

/* question-page */
.question-page .question-img-block {
  transform-origin: 50% 100%;
}