.colorTitle {
    color:rgb(0,112,192);
}

.colorOrange {
    color:rgb(228,108,10);
}

.colorLightGreen {
    color:rgb(146,208,80);
}

.nav-justified>li>a {
    margin-left:2%;
    margin-right:2%;
    color: #dddddd;
}

/*LearningReference li 高度控制*/
@media (min-width: 768px) {
    .nav-justified>li>a {
    height:180px;
    }
}


@media (max-width: 768px) {
    .nav-justified>li>a {
    height:130px;
    }
}


.nav-justified>li:nth-child(n+1)>a {
    background-color: rgb(0,176,240);
}
.nav-justified>li:nth-child(n+2)>a {
    background-color: rgb(255,0,0);
}
.nav-justified>li:nth-child(n+3)>a {
    background-color: rgb(146,208,80);
}
.nav-justified>li:nth-child(n+4)>a {
    background-color: rgb(55,96,146);
}


#css_table {
      display:table;
  }
.css_tr {
      display: table-row;
  }
.css_td {
      display: table-cell;
  }