*{ margin:0; padding:0; }
body, h1, h2, h3, h4, h5, h6, p, dl, dd, ul, ol, input{
	margin:0;/*去掉自带外间距*/
	padding:0;/*去掉自带内填充*/
}
em, i{
	font-style:normal;/*斜体扶正*/
}
li{
	list-style:none;/*去掉默认列表符*/
}
h1, h2, h3, h4, h5, h6, b, strong{
	font-weight:normal;/*去掉标题自带加粗*/
}
a{
	outline:none;/*去掉虚线框*/
	text-decoration:none;/*去掉自带下划线*/
}
img{
	border:none;/*去掉图片外面的边框*/
	vertical-align:top;/*图片对齐方式*/
}
table{
	border-collapse:collapse;/*去掉表格自带间隙*/
	border-spacing:0;
}
input{
	outline:none;
	/*border:none;*/
	background-color:transparent;/*背景色透明*/
}
textarea{
	outline:none;
	resize:none;/*禁止调整文本域尺寸*/
	overflow:auto;/*在浏览器默认状态下没有滚动条*/
}
/*placeholder字体颜色改变*/
:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #999; opacity:1;
}
::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #999;opacity:1;
}
input:-ms-input-placeholder{
    color: #999;opacity:1;
}
input::-webkit-input-placeholder{
    color: #999;opacity:1;
}
/*去掉number自带上下箭头*/
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button{
	-webkit-appearance: none !important; 
}