.join-us-div {
    width: 1200px;
    margin: 40px auto;
}

.join-us-div table {
    padding: 0 20px;
    width: 100%;
    font-size: 14px;
    line-height: 60px;
}

.join-us-div th {
    font-family: 'Arial Normal', 'Arial';
    font-weight: 400;
    font-style: normal;
    letter-spacing: normal;
    color: #333333;
    text-align: left;

}

.join-us-div td {
    color: #7F7F7F;
    border-bottom:rgba(215, 215, 215, 1) solid 1px ;
}
.join-us-content{
    display: none;
    line-height: 25px;
}

@keyframes fade-in {
    0% {opacity: 0;}/*初始状态 透明度为0*/
    40% {opacity: 0;}/*过渡状态 透明度为0*/
    100% {opacity: 1;}/*结束状态 透明度为1*/
}
@-webkit-keyframes fade-in {/*针对webkit内核*/
    0% {opacity: 0;}
    40% {opacity: 0;}
    100% {opacity: 1;}
}
.join-us-content {
    animation: fade-in;/*动画名称*/
    animation-duration: 1s;/*动画持续时间*/
    -webkit-animation:fade-in 1s;/*针对webkit内核*/
}