.authentication {
  width: 100vw;
  height: 100vh;
  position: relative;
}

.authentication .bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url(/images/imgs/pc-authentication-bg.png) no-repeat;
  background-size: 100% 100%;
  -webkit-filter: blur(25px);
  filter: blur(25px);
}

.authentication .cot {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  border-radius: 10px;
  background-color: #fff;
  z-index: 2;
  box-shadow: 0 0 55px 8px #ccc;
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  flex-direction: column;
  -webkit-box-align: center;
  align-items: center;
  -webkit-box-pack: center;
  justify-content: center;
}

.authentication .cot > p {
  margin: 20px 0 30px;
  font-size: 18px;
}

.authentication .cot .close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 20px;
  cursor: pointer;
}