@charset "utf-8";
/* CSS Document */

.iframe-height {
	height:40em!important;
}

#exercise3 .i_ex3 {
	margin:0 auto 15px;
	width:65%;
}


@media screen and (max-width: 980px) {
#exercise3 .i_ex3 {
	width:75%;
}
}


@media screen and (max-width : 690px ){
#exercise3 .i_ex3 {
	width:100%!important;
}

}