例
<style type="text/css"> .parent { opacity:.5; } .parent div { opacity:1; /* I want this to override the ".5",but instead it combines */ } </style> <div class="parent"><div></div></div>
#my_element { /* ie6 fallback - no opacity */ background-color:rgb(255,255,255); /* rgba(red,green,blue,alpha); */ background-color:rgba(255,0.5); }
