.answerbutton {
    margin-bottom: 8px;
}

.testremark:hover {
    font-size: 150%;
    color: orangered
}

.systitle {
    color: rgba(31, 57, 97, 0.87);
    text-align: center;
}

.testfont {
    color: orangered
}

.testfontred {
    color: red
}

.testul {
    list-style-type: none
}

.testsider {
    position: fixed;
    float: left;
    width: 200px;
    height: 100%;
    overflow: visible;
    background-color: #ece6e3;
    padding: 30px 30px 100px 30px;
}

.testsider_ul {
    height: 75%;
    overflow-y: auto;
}

.testbody {
    position: absolute;
    left: 200px;
    min-width: 1000px
}

.questionssider {
    background: #fff1ea;
    text-align: center;
    color: black;
}

.questionpic {
    margin-bottom: 25px;
}

div.img {
    border: 1px solid #ccc;
}

div.img:hover {
    border: 1px solid #777;
}


* {
    box-sizing: border-box;
}


@media only screen and (max-width: 700px) {
    .responsive {
        width: 49.99999%;
        margin: 6px 0;
    }
}

@media only screen and (max-width: 500px) {
    .responsive {
        width: 100%;
    }
}

.clearfix:after {
    content: "";
    display: table;
    clear: both;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: fixed;
    right: 30px;
    top: 30px;
    background-color: #f9f9f9;
    max-height: 500px;
    max-width: 700px;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}

.dropdown:hover .dropdown-content {
    display: block;
}

.desc {
    padding: 15px;
    text-align: center;
}


/*定义了滚动条整体样式；*/
::-webkit-scrollbar {
    height: 28px !important;
    width: 15px !important;
}

/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    border-style: dashed;
    background-color: rgba(12, 80, 235, 0.4);
    border-color: #e2242400;
    border-width: 1.5px;
    background-clip: padding-box;
}


/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track {
    box-shadow: inset 0 0 0px rgba(240, 240, 240, .5);
    border-radius: 10px;
    background-color: rgba(240, 240, 240, .5);
}