/* Header/Footer stuff */
.my-header {
  display: inline-block;
  position: absolute;
  top: 0px;
  left: 0px;
  height: 70px;
  width: 100%;
  text-align: left;
  color: white;
  font-size: 40px;
}

.my-header img {
  float: left;
  width: 5%;
  margin-left: 1%;
  margin-right: 1%;
  margin-top: 1.25%;
}

.my-header span {
  display: table-cell;
  height: 70px;
  width: 92%;
  padding-left: 1%;
  padding-right: 1%;
  vertical-align: middle;
  color: white;
}

.my-watermark {
  background-image: url(/images/remark.js/logo_sjtu.svg);
  display: block;
  position: absolute;
  right: -16.2%;
  bottom: -10%;
  height: 60%;
  width: 45%;
  background-size: 80%;
  background-repeat: no-repeat;
  background-clip: border-box;
  transform: rotate(315deg);
}

.unselectable {
  user-drag: none; 
  user-select: none;
  -moz-user-select: none;
  -webkit-user-drag: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
}

.my-footer {
  display: inline-block;
  position: absolute;
  bottom: 0px;
  left: 0px;
  height: 26px;
  font-size: 14px;
  width: 100%;
  color: white;
}

.my-footer span {
  display: table-cell;
  position: absolute;
  left: 0px;
  height: 22px;
  padding-top: 4px;
  vertical-align: middle;
  color: white;
}