.gge_contenido_L .act_content{
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-06.png');
	background-position: 50% 50%;
	background-repeat: no-repeat;
}

.dos_intro{
	position: absolute;
	left: 143px;
	top: 218px;
}
.dos_intro a{
	display: inline-block;
	width: 174px;
	height: 248px;
	margin-right: 35px;
}
.dos_intro a:nth-child(1){
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-74.png');
}
.dos_intro a:nth-child(2){
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-75.png');
}
.dos_intro a:nth-child(3){
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-73.png');
}

.dos_intro a:nth-child(1):hover{
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-71.png');
}
.dos_intro a:nth-child(2):hover{
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-72.png');
}
.dos_intro a:nth-child(3):hover{
	background-image: url('../img/ACT1/SB_L_G11_U01_L06RECURSOS-76.png');
}