body {
  background-color: #000000;
}


.divIntro {
  border: 2px outset blue;
  background-color: white;
  text-align: center;
  width: 800px; 
  position: relative;
  left : 550px;
}

h1 {
  color: blue;
  text-align: center;
}

p {
  color: black;
  font-family: courier new;
  font-size: 16px;
}

.divDream {
  border: 2px outset blue;
  padding: 12px;
  background-color: white;
  max-width: 800px;
width: 800px; 
margin: 0 auto;
}

table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
}

.center {
  margin-left: auto; 
  margin-right: auto;
}

details > summary {
    list-style-type: none;
}

details > summary::-webkit-details-marker {
    display: none;
}

details > summary::before {
    content: '✧';
}

details[open] > summary::before {
    content: '✦';
}


details > summary {
  padding: 4px;
  width: 200px;
  background-color: #00000;
  color: #ffffff
  border: 3px orange;
  box-shadow: 1px 1px 2px #bbbbbb;
  cursor: pointer;
}

details > p {
  background-color: #eeeeee;
  padding: 25px;
  width: 600px;
  margin: 0;
  box-shadow: 1px 1px 2px #bbbbbb;
  text-align: justify;
  text-justify: inter-word;
}