CSS修改input placeholder样式

 1 ::-webkit-input-placeholder {
 2   color: red;
 3 }
 4 :-moz-placeholder {/* Firefox 18- */
 5   color: red;
 6 }
 7 ::-moz-placeholder{/* Firefox 19+ */
 8  color: red;
 9 }
10 :-ms-input-placeholder {
11   color: red;
12 }