.footer {
  color: white;
  text-align: center;
  background-color: #333;
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4.5rem;
  z-index: 1000000;
}

.footer a {
  color: white;
  padding: 10px;
  padding-top: 20px;
  display: inline-block;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: none;
  color: #333333;
}

.overlay:target {
  visibility: visible;
  opacity: 1;
}

.overlay {
  background-color: rgba(0, 0, 0, 0.6);
  bottom: 0;
  cursor: default;
  left: 0;
  opacity: 0;
  position: fixed;
  right: 0;
  top: 0;
  visibility: hidden;
  z-index: 100;
  -webkit-transition: opacity .5s;
  -moz-transition: opacity .5s;
  -ms-transition: opacity .5s;
  -o-transition: opacity .5s;
  transition: opacity .5s;
}

.overlay:target + .popup {
  top: 50%;
  opacity: 1;
  visibility: visible;
}

.popup {
  background-color: #fff;
  border: 3px solid #fff;
  display: inline-block;
  left: 50%;
  opacity: 0;
  padding: 30px;
  position: fixed;
  text-align: justify;
  top: 40%;
  visibility: hidden;
  z-index: 100;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-border-radius: 10px;
  -ms-border-radius: 10px;
  -o-border-radius: 10px;
  border-radius: 10px;
  -webkit-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
  -ms-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
  -o-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
  box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
  -webkit-transition: opacity .5s, top .5s;
  -moz-transition: opacity .5s, top .5s;
  -ms-transition: opacity .5s, top .5s;
  -o-transition: opacity .5s, top .5s;
  transition: opacity .5s, top .5s;
}

.popup label {
  display: inline-block;
  text-align: left;
  width: 120px;
  background-color: white;
  color: #333;
  border: 0px;
}

.popup input[type="text"], .popup input[type="password"] {
  border: 1px solid;
    border-top-color: currentcolor;
    border-right-color: currentcolor;
    border-bottom-color: currentcolor;
    border-left-color: currentcolor;
  border-color: #999 #ccc #ccc;
  margin: 0;
  padding: 2px;
  -webkit-border-radius: 2px;
  -ms-border-radius: 2px;
  -o-border-radius: 2px;
  border-radius: 2px;
}

input[type="submit"] {
  width: 100px;
  background-color: #63a1cc;
  color: white;
  border-radius: 4px;
  border: none;
  margin: 0 auto;
    margin-top: 0px;
  font-size: 14px;
  cursor: pointer;
  padding: 8px;
  margin-top: 20px;
  display: block;
}

.close::before {
  color: rgba(255, 255, 255, 0.9);
  content: "X";
  font-size: 18px;
  text-shadow: 0 -1px rgba(0, 0, 0, 0.9);
  text-decoration: none;
}

.close {
  background-color: rgba(0, 0, 0, 0.8);
  height: 30px;
  line-height: 30px;
  position: absolute;
  right: 0;
  text-align: center;
  text-decoration: none;
  top: -15px;
  width: 30px;
  -webkit-border-radius: 15px;
  -ms-border-radius: 15px;
  -o-border-radius: 15px;
  border-radius: 15px;
}