#volunteer_content .banner_btn{text-align:center;margin:0 auto}#volunteer_content .volunteer_staff_img{width:573px;text-align:center;margin:0 auto;padding:50px 0 30px}#volunteer_content .volunteer_staff_img img{width:100%}@media screen and (max-width:768px){#volunteer_content .banner_btn img{width:85%}#volunteer_content .volunteerlogo{width:160px}#volunteer_content .volunteer_staff_img{width:auto;text-align:center;margin:0 auto;padding:0}#volunteer_content .volunteer_staff_img img{width:100%}}