HBcaoPopup.css

.popup-box {
  outline: none;
  border: none;
  padding: 0;
  margin: 0;
  background: unset;
  opacity: 0;
  -webkit-transition: opacity 2s ease-in;
  -o-transition: opacity 2s ease-in;
  transition: opacity .3s ease-in;
}

.popup-box[open] {
  opacity: 1;
}

.popup-box .popup {
  width: 400px;
  position: fixed;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
  padding: 0;
}

.popup-box .popup>.popup-title-box {
  position: relative;
  width: 100%;
  height: 55px;
  cursor: move;
}

.popup-box .popup>.popup-title-box .popup-title {
  padding-left: 14px;
  line-height: 55px;
  font-weight: bold;
  user-select: none;
}

.popup-box .popup>.popup-title-box .popup-close-btn {
  position: absolute;
  top: 12px;
  right: 20px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}

.popup-box .popup>.popup-title-box .popup-close-btn:hover {
  opacity: .8;
}

.popup-box .popup>.popup-title-box .popup-close-btn svg {
  width: 20px;
  height: 20px;
}

.popup-box .popup>.popup-content {
  width: calc(100% - 40px);
  padding: 20px;
}