.input-box{position: relative;}
.star{position: absolute;top: 0;left: 0;width: 100%;line-height: 3.2em;}
.star span{color: red;}
.bind-input{position: relative;z-index: 1;background-color: transparent;}
.input-box.hide   .star{opacity: 0;}
.contactd .contm .conl .row .input.w100.yzm .mm{position: relative;z-index: 2;}