.petroleum-container{
    padding-top: 60px;
}

.academic-staff-item{
    display: block;
    width: 100%;
    background-color: #ffffff;
    font-size: 15px;
    padding:20px 30px;
    transition: .2s;
    cursor: pointer;
}
.cademic-staff-name{
    display: flex;
    justify-content: flex-end;
    position: relative;
}
.academic-staff-item .avatar{
    width: 70px;
	height: 70px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    bottom: -55px;
    left: 0;
}
.academic-staff-item .avatar img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.academic-staff-item  .name{
    font-size: 20px;
    letter-spacing: 0px;
	color: #1f1f1f;
    text-align: end;
}
.academic-staff-item  .email{
    font-size: 14px;
    letter-spacing: 0px;
    height: 22px;
    line-height: 22px;
	color: #999999;
}
.academic-staff-item:hover{
    box-shadow: 0px 3px 25px 0px 
    rgba(140, 140, 140, 0.35);
}
.academic-staff-title{
    font-size: 16px;
    height: 24px;
    line-height: 24px;
    color: #1f1f1f;
}
.cademic-staff-introduce{
    color: #5c5c5c;
    font-size: 15px;
    margin: 15px 0;
    line-height: 30px;
    height: 60px;
}

.tab-content{
    background-color: #f6f6f6;
}
#professor .row>div{
    padding-right: 10px;
   padding-left: 10px;
   margin-bottom: 37.5px;
}

#professor  .row>div:nth-child(3n+3){
    margin-bottom: 75px;
}
.professor-tab .row>div{
    padding-right: 10px;
   padding-left: 10px;
   margin-bottom: 37.5px;
}

.professor-tab  .row>div:nth-child(3n+3){
    margin-bottom: 75px;
}
.pagination{
    width: 100%;
    display: flex;
    justify-content: flex-end;
    padding: 20px 0;
}
.petroleum-content{
    padding-bottom: 110px;
}
.z-page-tab{
    margin-bottom: 30px;
}