input{
/*去除阴影*/
box-shadow:none;
/*聚焦input的蓝色边框*/
outline: none;
/*textarea 禁止拖拽*/
resize: none;
/*去除边框*/
border: none;
/*常用于IOS下移除原生样式*/
-webkit-appearance: none;
-moz-appearance: none;
-o-appearance: none;
/*点击高亮的颜色*/
-webkit-tap-highlight-color:rgba(0,0,0,0);
border-radius: 0;
}