.classleft2 {
    position: fixed;
    top: 3.5rem;
    left: 0;
    float: left;
    padding-bottom: 2.5rem;
    width: 28%;
    height: 100%;
    box-sizing: border-box;
    background: #f6f6f6;
    overflow: scroll;
}

.classleft2::-webkit-scrollbar {
    display: none;
}

.classleft2 a {
    position: relative;
    display: block;
    font-size: 0.55rem;
    text-align: center;
    line-height: 1.8rem;
}

.classleft2 a.on {
    background: #fff;
    font-weight: bold;
    font-size: 0.6rem;
}

.classleft2 a em {
    display: none;
}

.classleft2 a.on em {
    display: block;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -0.4rem;
    width: 4px;
    height: 0.8rem;
    background: #dd4d41;
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}

.classleft2 li {
    position: relative;
    display: block;
    font-size: 0.5rem;
    text-align: center;
    line-height: 1.8rem;
}

.classleft2 li.on {
    background: #efefef;
    font-weight: bold;
    font-size: 0.6rem;
    border-left: 5px solid #f1c40f;
    color: #fbc531;
}

.classleft2 li em {
    display: none;
}

.classleft2 li.on em {
    display: block;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -0.4rem;
    width: 4px;
    height: 0.8rem;
    background: #dd4d41;
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}

.classright2 {
    position: relative;
    top: 3.5rem;
    right: 0;
    float: right;
    padding-bottom: 2.5rem;
    width: 70%;
    height: 100%;
    box-sizing: border-box;
    overflow: scroll;
}

.classlist2 {
    margin-bottom: 1rem;
}

.classlist2 dt {
    text-align: center;
    color: #2f5d50;
    font-size: 0.6rem;
    line-height: 1.6rem;
    margin-top: 0.3rem;
    font-weight: bold;
}

.classlist2 dd {
    float: left;
    width: 33.333%;
    text-align: center;
    font-size: 0.5rem;
    margin: 0.8em 0;
}

.classlist2 dd img {
    display: block;
    width: 2rem;
    margin: auto;
    margin-bottom: 0.3rem;
    border-radius: 4px;
    height: 2rem;
}

.classlist2 dd a {
    color: #000;
}