CSS样式：Input输入框向外发光特效

input[type=text]:focus,input[type=password]:focus,textarea:focus{
transition:border linear .2s,box-shadow linear .5s;
-moz-transition:border linear .2s,-moz-box-shadow linear .5s;
-webkit-transition:border linear .2s,-webkit-box-shadow linear .5s;
outline:none;border-color:rgba(253,215,5,.75); //输入框边框颜色
box-shadow:0 0 10px rgba(253,215,5,.105); //向外漫射程度1
-moz-box-shadow:0 0 10px rgba(253,215,5,.5);//向外漫射程度2
-webkit-box-shadow:0 0 10px rgba(253,215,5,3);//向外漫射程度3
}