.HistBlock {
    border-top: 1px dotted silver;
    border-bottom: 1px dotted silver;
}
.DateTimeBlock {
    margin-bottom: 5px;
    margin-top: 5px;
    font-size: 10px;
}
.QueBlock {
    margin-bottom: 5px;
    margin-top: 5px;
}
.QueBlockAns {
    margin-left: 30px;
}

.AnsBlock {
    margin: 3px;
    padding: 3px;
}
.AnsBlock:hover {
    background-color:#CCDCEE;
    border-bottom: 1px dotted #BABABA;
    border-top: 1px dotted #BABABA;
}
.AnsBlockSel {
    background-color:#FDEB9F;
    border-bottom: 1px dotted #BABABA;
    border-top: 1px dotted #BABABA;
}

.AnsBlockSel:hover {
    background-color:#FEC007;
    border-bottom: 1px dotted #BABABA;
    border-top: 1px dotted #BABABA;
}