.head1 {
    font-family:serif;
    font-size:xx-large;
    font-weight:bold;
    text-align:center;
    padding-top:10px;
}
body {
    margin: 0 auto;
    background-position:center;
    background-size: contain;
}
table {
  font-family: arial, sans-serif;
  border-collapse: separate;
  width: 100%;
}
td, th {
  border: 2px solid #dddddd;
  border-radius: 10px;
  text-align: left;
  padding: 8px;
}
footer {
    width: 100%;
    bottom: 0;
    color: #111;
    position: relative;
    padding-top:15px;
    padding-bottom:15px;
    text-align:center;
    font-size:small;
}
.body_sec {
    width:60%;
    margin:auto;
}
.body_sec img{
    clear:left;
    padding:20px;
}
.body_sec ul{
    line-height:1.4;
}
p {
    line-height:1.6;
}
.collapsible {
  background-color: #777;
  color: white;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}
.collapsible:after {
  content: '\02795';
  font-size: 13px;
  color: white;
  float: right;
  margin-left: 5px;
}
.active:after {
  content: "\2796";
}
.active, .collapsible:hover {
  background-color:LigthGray;
}
.content {
  padding: 0 18px;
  display: none;
  overflow: hidden;
  background-color: #f1f1f1;
}