* {
    padding: 0px;
    margin: 0px;
}

body {
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    font-family: 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    min-width: 300px;
}

.flex_box_horizontal {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    /* 覆盖 */
    flex-flow: row wrap;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    -moz-box-orient: horizontal;
    -moz-box-direction: row;
    -ms-flex-direction: row;
    -o-flex-direction: row;
    flex-direction: row;
}

.flex_box_vertical {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -moz-box-orient: vertical;
    -moz-box-direction: column;
    -ms-flex-direction: column;
    -o-flex-direction: column;
    flex-direction: column;
}

.flex_box_auto_size {
    -webkit-box-flex: 1;
    -webkit-flex: 1 1 auto;
    -moz-box-flex: 1;
    -ms-flex: 1 1 auto;
    flex: 1 1 auto;
    /* flex-grow: 1; */
}