.jianjie {
    width: 960px;
    height: 600px;
    overflow: hidden;
}

    .jianjie h2 {
        width: 60px;
        font-size: 15px;
        font-weight:600;
        color: #69525b;
        line-height: 40px;
        border-bottom: solid 2px #639963;
        margin: 30px;
    }

    .jianjie textarea {
        display: block;
        width: 860px;
        height: 300px;
        resize: none;
        margin: 30px auto;
        padding: 15px;
        outline: none;
        border: solid 1px #CCCCCC;
        font-family: "微软雅黑";
        font-size: 14px;
        color: #333333;
        line-height: 26px;
    }
    .jianjie textarea:focus{
        border:1px solid #2196f3;
        background-color: #fefefe;
    }

    .jianjie input {
        display: block;
        width: 120px;
        height: 30px;
        float: right;
        margin: 0px 50px 30px 0;
        border: none;
        background-color: #639963;
        color: #FFFFFF;
    }
.jianjie input:hover{background-color:#7baf7b;}
.jianjie input:active{background-color:#5a885a;}