@media screen and (max-width: 768px) {
    .item-text{
        font-size: 16px;
        line-height: 1.5;
        margin: 20px 0;
    }
    .people-container{
        width: 92%;
        margin: 50px auto;
    }
    .name{
        margin-bottom: 10px;
    }
    .position{
        color: #2b75a6;
        margin-bottom: 15px;
    }
    .expertise{
        width: 100%;
        font-size: 18px;
        padding-bottom: 5px;
        border-bottom: 1px solid #d9d9d9;
        margin-bottom: 10px;
    }
    .Biography{
        margin: 40px auto;
        font-size: 16px;
        font-weight: bolder;
        padding-bottom: 10px;
        border-bottom: 1px solid #d9d9d9;

    }
    .content{
        font-size: 16px;
        line-height: 1.5;
        margin-bottom: 20px;
    }
}
@media screen and (min-width: 768px) and (max-width: 1200px) {
    .item-text{
        font-size: 18px;
        line-height: 1.5;
        margin: 20px 0;
    }
    .people-container{
        width: 700px;
        margin: 50px auto;
    }
    .name{
        margin-bottom: 10px;
    }
    .position{
        color: #2b75a6;
        margin-bottom: 15px;
    }
    .expertise{
        width: 100%;
        font-size: 18px;
        padding-bottom: 5px;
        border-bottom: 1px solid #d9d9d9;
        margin-bottom: 10px;
    }
    .Biography{
        margin: 40px auto;
        font-size: 18px;
        font-weight: bolder;
        padding-bottom: 10px;
        border-bottom: 1px solid #d9d9d9;

    }
    .content{
        font-size: 18px;
        line-height: 1.5;
        margin-bottom: 20px;
    }
}
@media screen and (min-width: 1200px) {

    .item-text{
        font-size: 18px;
        line-height: 1.5;
        margin: 20px 0;
    }
    .people-container{
        width: 700px;
        margin: 50px auto;
    }
    .name{
        margin-bottom: 10px;
    }
    .position{
        color: #2b75a6;
        margin-bottom: 15px;
    }
    .expertise{
        width: 100%;
        font-size: 18px;
        padding-bottom: 5px;
        border-bottom: 1px solid #d9d9d9;
        margin-bottom: 10px;
    }
    .Biography{
        margin: 40px auto;
        font-size: 18px;
        font-weight: bolder;
        padding-bottom: 10px;
        border-bottom: 1px solid #d9d9d9;

    }
    .content{
        font-size: 18px;
        line-height: 1.5;
        margin-bottom: 20px;
    }


}