* {
  box-sizing: border-box;
}
body {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 13pt;
  padding: 0;
  margin: 0;
}
#alert1, #alert2 {
  background-color: rgba(0,0,0,0.7);
  height: 100%;
  position: absolute;
  top: 0;
  visibility: hidden;
  width: 100%;
  z-index: 999;
}
#alert1:target, #alert2:target {
  visibility: visible;
}
.alert-box {
  background-color: #fff;
  border-radius: 10px;
  color: #404040;
  left: 50%;
  min-width: 300px;
  position: absolute;
  top: 30%;
  transform: translate(-50%, -50%);
  width: 300px;
}
.alert-message {
  line-height: 1.4;
  padding: 30px;
  width: 100%;
}
.alert-buttons {
  border-top: thin solid #ddd;
  text-align: center;
  width: 100%;
}
.alert-buttons a {
  border-right: thin solid #ddd;
  color: #404040;
  display: inline-block;
  line-height: 40px;
  text-decoration: none;
  width: 49%;
}
.alert-buttons a:last-of-type {
  border-right: none;
}
.alert-buttons a:hover {
  color: #358cc6;
}


.buttons {
  position: absolute;
  top: calc(50% - 20px);
  width: 100%;
  text-align: center;
}
.btn {
  background-color: #48649F;
  border-radius: 5px;
  border-bottom: 4px solid #3c5587;
  color: #fff;
  padding: 15px 20px;
  margin: 0 10px;
  text-decoration: none;
}
.btn:visited, .btn:focus {
  color: #fff;
}