@charset "utf-8";
.tit_intro{
 background-image : url(../img_introduction/tit_intro.png);
 background-repeat : no-repeat;
 height : 55px;
}
.tit_story{
 background-image : url(../img_introduction/tit_story.png);
 background-repeat : no-repeat;
 height : 55px;
}