/*mian box*/
.main_box {
    overflow: hidden;
    width: 1000px;
    margin: 20px auto;
}

.main_left {
    float: left;
    width: 267px;
    height: 300px;
    border-left: 2px solid #375ECC;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.main_left .left_nav_item {
    width: 267px;
    height: 60px;
    background: #F8FAFE;
    border: 1px solid #F0F3F9;
    border-left: none;
    text-align: center;
    font: 17px/60px MicrosoftYaHei;
    color: #375ECC;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    cursor: pointer;
}

.main_left .active {
    background: #375ECC;
    box-shadow: inset 4px 0 1px 0 #375ECC;
    color: #FFFFFF;
}

.main_right {
    float: right;
    width: 660px;
}

.main_right #container p {
    font-family: MicrosoftYaHei;
    font-size: 18px;
    color: #333333;
    letter-spacing: 0;
    line-height: 26px;
    text-indent: 40px;
}