.exercise-viewer {
    width: 100%;

    :global {
        /*********************
        * 公式样式
        **********************/

        .MathJye table {
            border-collapse: collapse;
            margin: 0;
            padding: 0;
            text-align: center;
            vertical-align: middle;
            line-height: normal;
            font-size: inherit;
            _font-size: 100%;
            font-style: normal;
            font-weight: normal;
            border: 0;
            float: none;
            display: inline-block;
            zoom: 0;
        }

        #q_answer {
            display: none;
        }

        table.edittable {
            border-collapse: collapse;
            text-align: center;
            margin: 2px;
        }

        table.edittable td,
        table.edittable th {
            line-height: 30px;
            padding: 5px;
            white-space: normal;
            word-break: break-all;
            border: 1px solid #000;
            vertical-align: middle;
        }

        table.composition {
            border-collapse: collapse;
            text-align: left;
            margin: 2px;
            width: 98%;
        }

        table.composition td,
        table.composition th {
            line-height: 30px;
            white-space: normal;
            word-break: break-all;
            border-width: 0;
            vertical-align: middle;
        }

        table.composition2 {
            border-collapse: collapse;
            width: auto;
        }

        table.composition2 td,
        table.composition2 th {
            text-align: left;
            line-height: 30px;
            white-space: normal;
            word-break: break-all;
            border: none;
            border-width: 0;
            vertical-align: middle;
        }

        .formula {
            -webkit-user-modify: read-write;
            -ms-user-modify: read-write;
            -moz-user-modify: read-write;
            -o-user-modify: read-write;
            white-space: nowrap;
        }

        .mjx-chtml {
            outline: 0;
        }

        .MJXc-display {
            overflow-x: auto;
            overflow-y: hidden;
        }

        /*************************
        * 公式样式
        **************************/
    }
}