#av_section_2 a.avia-button {transition:all 0.8s !important;
background-color:rgba(255,255,255,0.70) !important;
border: rgba(255,255,255,0.70) solid 2px !important;
color:#000 !important;
font-weight:bold !important;
}
#av_section_2 a.avia-button:hover {background:#8dc63e !important;
border: #8dc63e solid 2px !important;
color:#FFF !important;
opacity:1 !important;
}
#av_section_3 a.avia-button {transition:all 0.8s !important;
background:#8dc63e !important;
border: #8dc63e solid 2px !important;
color:#FFF !important;
font-weight:bold !important;
}
#av_section_3 a.avia-button:hover {
background-color:rgba(0,0,0,1.00) !important;
border: rgba(0,0,0,1.00) solid 2px !important;
color:#fff !important;
opacity:1 !important;
}
原文：http://luckyyang.blog.51cto.com/4524113/1790034