.datasign-modal {
  display: block;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  width: 800px;
  max-width: 100%;
  height: 600px;
  max-height: 100%;
  z-index: 2147483647;
}
.datasign-modal .datasign-modal-scroll {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
}
.datasign-modal .datasign-frame {
  width: 100%;
  height: 100%;
}
.datasign-modal .datasign-modal-close {
  position: absolute;
  top: 9px;
  right: 9px;
  padding: 0;
  border: 0;
  background: #3A4651;
  color: #fff;
  width: 28px;
  height: 28px;
  line-height: 28px;
  border-radius: 50%;
  z-index: 1;
  transition: background-color .3s;
}
.datasign-modal .datasign-modal-close:hover {
  background: #1d2328;
  cursor: pointer;
}

.datasign-modal-overlay {
  display: block;
  z-index: 2147483646;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  animation: fadeIn 300ms ease 0s 1 normal;
  -webkit-animation: fadeIn 300ms ease;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.datasign-modal-hide {
  display: none;
}