.put { -webkit-transition:border linear .2s,-webkit-box-shadow linear .2s; outline:none; border-color:rgba(241,39,242,.6); -webkit-box-shadow:0 0 8px rgba(241,39,232,.3); }
rgba:同rgb,后面.6=0.6=alpha,取值0-1
原文:http://www.cnblogs.com/cyxxzjp/p/3817758.html