*{
  font-family: Futura, Verdana;
  font-size: 16px;
}

body {
    background-image: url('https://www.pixelstalk.net/wp-content/uploads/2016/06/Download-Link-Photos.jpg');
    background-size: 100%;
}

table {
  border: 1px solid black;
  margin: 20px auto;
}

tr {
  border: 1px solid black;
}

td {
  border: 1px solid black;
}

p {
  text-align: center;
}

h1 {
  font-size: 32px;
  text-align: center;
  font-family: fangsong;
  font-weight: bold;
}

h3 {
  padding-left: 10px;
  padding-right: 10px;
  text-align: center;
  background-color: steelblue;
  color: white;
}

.tablesec {
  background-color: steelblue;
}

.tag {
  font-weight: bold;
  background-color: skyblue;
  color: darkblue;
  padding: 5px;
}

.func {
  background-color: paleturquoise;
  padding: 5px;
}

.default {
  background-color: paleturquoise;
  padding: 5px;
}

#underlined {
  text-decoration: underline;
}

#underlined2 {
  text-decoration: underline;
}

#purple{
  color: purple;
}

#outlined {
  border: black solid 1px;
  padding: 2px;
}

#note {
  font-size: 14px;
}

#red {
  color: red;
}

#pointer {
  height: 20px;
}