/*  */
 .overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5); /*  */
  z-index: 1000;
}

/*  */
.dialog {
  width: 320px;
  height: 120px;
  background-color: #fff;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  z-index: 1001; /*  */
  display: none; /*  */
  padding: 20px;
  border-radius: 5px;
}
.dialog .dialog-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-flow: column nowrap;
  justify-content: space-between;
  align-items: center;
}