* {
  box-sizing: border-box;
}
html {
  margin: 0;
  background-image: url('background.jpg');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100%;
}
body {
  font-family: cursive;
}

ul {
  margin: 0;
  padding: 10px;
}

ul li {
  position: relative;
  padding: 12px 8px 12px 20px;
  font-size: 18px;
  color: azure;
  cursor: pointer;
  list-style-type: none;
}
li {
  text-align: center;
  border-left: 1px solid #fff;
  margin-top: 10px;

  background-color: rgba(128, 128, 128, 0.3);
}
.bigDiv {
  margin: 0 auto;
  max-width: 960px;
}
.theMainDiv {
  background-color: rgba(128, 128, 128, 0.7);
  padding: 30px 40px;
  color: white;
  text-align: center;
}
.theMainDiv:after {
  content: '';
  display: table;
  clear: both;
}
input {
  margin: 0;
  border: none;
  border-radius: 0;
  width: 75%;
  padding: 10px;
  float: left;
  font-size: 16px;
}
.myButton {
  padding: 10px;
  width: 25%;
  background: black;
  color: white;
  float: left;
  text-align: center;
  font-size: 16px;
  border-radius: 0;
  cursor: pointer;
  transition: 0.3s;
}
.closeButton {
  position: absolute;
  right: 0;
  top: 0;
  padding: 12px 16px 12px 16px;
}
.closeButton:hover {
  background-color: red;
  color: white;
}