@font-face {
    font-family: 'Droid Sans';
    src: url('droid-sans.ttf') format('truetype'),
         url('droid-sans-bold.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Droid Sans';
    src: url('droid-sans-bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

body {
  background-color: black;
  color: white;
  text-align: center;
  font-family: "Droid Sans", sans-serif;
  font-weight: 400;
  font-style: normal;
}

header {
  background: linear-gradient(to bottom, #9c9c9c, #878787);
  width: 100%;
  padding: 2px;
  text-align: left;
  font-weight: bold;
  text-shadow: 0px 0px 11px rgba(0,0,0,0.61);
  }

button {
  background: linear-gradient(to bottom, #f1f1f1, #b8b8b8);
  padding: 5px;
  color: black;
  padding: 9px;
  cursor: pointer;
  border:none;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}
button:active {background: linear-gradient(to bottom, #ff9e00, #fba622);}
button.open {cursor: not-allowed;background: linear-gradient(to bottom, #535353, #636363);}

div {    
  box-sizing: border-box;
  margin: auto;
  margin-top: 10px;
  margin-bottom: 10px;
  padding: 6px;
  width: 50%;
  overflow: auto;
}

div.block {
  border-color: #4f4e4f;
  border-width: 1px;
  border-style: solid;
  box-shadow: 10px 10px 5px 0px rgba(0,0,0,0.75);
 -webkit-box-shadow: 10px 10px 5px 0px rgba(0,0,0,0.75);
 -moz-box-shadow: 10px 10px 5px 0px rgba(0,0,0,0.75);
  background-color: black;
}
div.image {
  background-color: none;
}

table, th, tr, td {text-align: center;}



img.stack {
  position: absolute;
  top: 0;
  left: 0;
}

a {text-decoration: none; color: white;}
mark {color:#ffe600;background-color: rgba(0, 0, 0, 0);font-weight: bold;}

@media (max-width: 768px) {div {width: 100%;}}