html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizelegibility;
    font-family: helvetica neue, helvetica, pingfang sc, hiragino sans gb,
    microsoft yahei, arial, sans-serif;
}

#app {
    background: #f5f5f5;
    height: 100%;
    font-family: pingfang sc-bold, pingfang sc, sans-serif;
}

*,
*:before,
*:after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

a:focus,
a:active {
    outline: none;
}

a,
a:focus,
a:hover {
    cursor: pointer;
    color: inherit;
    text-decoration: none;
}

div:focus {
    outline: none;
}

.clearfix {
    &:after {
        visibility: hidden;
        display: block;
        font-size: 0;
        content: ' ';
        clear: both;
        height: 0;
    }
}

button {
    border: none;
    outline: none;
    background: none;
    font-size: inherit;
    color: inherit;
    padding: 0;
    margin: 0;
}

input {
    width: 100%;
    border: 0; /*清除自带的2px的边框*/
    padding: 0; /*清除自带的padding间距*/
    outline: none; /*清除input点击之后的黑色边框*/
}


select {
    /* 移除默认的背景色和边框 */
    background-color: transparent;
    border: none;
    /* 移除默认外边距和内边距 */
    margin: 0;
    padding: 0;
    /* 移除默认的文本选择样式 */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

select:focus {
    outline: none;
}

.home {
    position: relative;
}

select option {
    border: none;
}