
html,
body {
    width: 100%;
    height: 100%;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
p,
blockquote,

/*结构元素*/

dl,
dt,
dd,
ul,
ol,
li,

/*list elements 列表元素*/

pre,

/*文本格式元素*/

form,
button,
input,
textarea,

/*form elements 表单元素*/

th,
td,

/*表格元素*/

img,
fieldset
/*img elements 图片元素*/

{
    border: none;
    padding: 0;
    margin: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
}


/*设置默认字体*/

body,
button,
input,
select,
textarea {
    font: 14px/1.5 Microsoft Yahei, tahoma, Srial, helvetica, sans-serif;
}

button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
}


/*清除斜体*/

em,
i,
var {
    font-style: normal;
}


/*清除列表元素*/

ul,
li,
ol {
    list-style: none;
}


/*重置超链接元素*/

a {
    text-decoration: none;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}

select[disabled],
input[disabled] {
    background: #efefef
}

.border-n {
    border: none;
}
* {
  box-sizing: border-box;
  &::-webkit-scrollbar {/*滚动条整体样式*/
    width: 7px;     /*高宽分别对应横竖滚动条的尺寸*/
    height: 4px;
  }
  &::-webkit-scrollbar-thumb {/*滚动条里面小方块*/
    border-radius: 7px;
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.4);
    background: #A6ACAF;
  }
  &::-webkit-scrollbar-track {/*滚动条里面轨道*/
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    border-radius: 7px;
    background: #EDEDED;
  }
}
