html - css中的曲线形状纸

Question

我需要翻页动画效果加载屏幕。我需要曲线形状的纸，比如像书上那样的附加图像。

在我的论文中像矩形如何制作固化形状的纸

我将这张图片设置为背景 bub 我需要那样的纸

.paperfixed {
  position: absolute;
  width: 43%;
  background-color: #a92929;
  height: 85%;
  z-index: 0;
  margin: 0px;
  left: 4px;
  top: 6px;
}
.cssload-thecube {
  width: 92px;
  height: 66px;
  margin: auto auto;
  position: relative;
  background-color: #000;
  border-radius: 8px;
}
.cssload-thecube .cssload-cube {
  position: relative;
}
.cssload-thecube .cssload-cube {
  float: left;
  width: 51%;
  height: 52%;
  position: relative;
  transform: scale(1.1);
  -o-transform: scale(1.1);
  -ms-transform: scale(1.1);
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
}
.cssload-thecube .cssload-cube:before {
  content: "";
  position: absolute;
  top: -37px;
  left: 12px;
  width: 100%;
  height: 100%;
  background-color: #e8cfcf;
  animation: cssload-fold-thecube 1s infinite linear both;
  -o-animation: cssload-fold-thecube 1s infinite linear both;
  -ms-animation: cssload-fold-thecube 1s infinite linear both;
  -webkit-animation: cssload-fold-thecube 1s infinite linear both;
  -moz-animation: cssload-fold-thecube 1s infinite linear both;
  transform-origin: 100% 100%;
  -o-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  -webkit-transform-origin: 100% 100%;
  -moz-transform-origin: 100% 100%;
}
.cssload-thecube .cssload-c2 {
  transform: scale(1.1) rotateZ(90deg);
  -o-transform: scale(1.1) rotateZ(90deg);
  -ms-transform: scale(1.1) rotateZ(90deg);
  -webkit-transform: scale(1.1) rotateZ(90deg);
  -moz-transform: scale(1.1) rotateZ(90deg);
}
@keyframes cssload-fold-thecube {
  0%, 50% {
    transform: perspective(-180deg) rotateX(-136px);
    opacity: 0;
  }
  50%,
  100% {
    transform: perspective(136px) rotateX(-180deg);
    opacity: 1;
  }
}
.book-bg {
  background-color: rgba(0, 0, 0, 0.8);
  display: block;
  width: 100%;
  height: 100%;
}

<div class="book">
  <div class="cssload-thecube">
    <div class=""></div>
    <div class="cssload-cube cssload-c2"></div>
  </div>
  <h5>Loading . . .</h5>
</div>

Answer 1

我已经稍微看了一下这个，你应该给你一些创建 flex 页面的方法的想法。

这确实需要纯色背景来创建底部页面曲线。希望你觉得这有帮助。

.book {
  width: 120px;
  margin: 40px;
  font-size: 0;
}
.page {
  display: inline-block;
  width: 60px;
  height: 80px;
  position: relative;
}
.page:before, .page:after {
  content: "";
  display: block;
  width: 100%;
  height: 14px;
  border-radius: 50%;
  position: absolute;

}
.firstPage:before {
  background: #a92929;
  top: -7px;
}
.secondPage:before {
  background: red;
  top: -7px;
}
.page:after {
  background: #fff;
  bottom: -7px;
}
.firstPage {
  background: #a92929;
}
.secondPage {
  background: red;
}

<div class="book">
  <div class="page firstPage"></div>
  <div class="page secondPage"></div>
</div>