.box { overflow: hidden; }

.kot {
	position: absolute;
	width: 0;
	height: 0;
	border-top: 55px solid green;
	border-right: 55px solid transparent;
}

.kot p { 
  position: absolute; 
  top: -60px;
  left: 4px;
  transform: rotate(-45deg);
  font-size: 16px;
  color: white;
}

.box {  
  position: relative;
  width: 315px;
  height: 160px;
  margin: 20px;
  background: #FFFF99;
  border-radius: 10px;
  font-size: 18px;
  font-family: 'Arial';
 }

.box-vsebina { width: 150px;
  margin: 12px auto; 
  text-align: center; }

.tecaj { 
  color: #00CCFF;
  text-transform: uppercase;
}

.predmet { 
  color: #660000;
  font-weight: bold;
  margin-top: 3px;
}

.box-vsebina img { 
  width: 100px; 
  margin-top: 20px;
}

.box-vsebina img:hover { margin-top: 1px; }