.flex{
	display: box;              /* OLD - Android 4.4- */
    display: -webkit-box;      /* OLD - iOS 6-, Safari 3.1-6 */
    display: -moz-box;         /* OLD - Firefox 19- (buggy but mostly works) */
    display: -ms-flexbox;      /* TWEENER - IE 10 */
    display: -webkit-flex;     /* NEW - Chrome */
    display: flex;             /* NEW, Spec - Opera 12.1, Firefox 20+ */
}



/* flex-direction: column */
.flex-column{
	/* 09版 */
    -webkit-box-orient: vertical;
    /* 12版 */
    -webkit-flex-direction: column;
    -moz-flex-direction: column;
    -ms-flex-direction: column;
    -o-flex-direction: column;
    flex-direction: column;
}


/* flex-wrap: wrap; */
.flex-wrap{
	/* 09版 */
    /*-webkit-box-lines: multiple;*/
    /* 12版 */
    -webkit-flex-wrap: wrap;
    -moz-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    -o-flex-wrap: wrap;
    flex-wrap: wrap;
}

.flex-jc-c{
	/* 09版 */
    -webkit-box-pack: center;
    /* 12版 */
    -webkit-justify-content: center;
    -moz-justify-content: center;
    -ms-justify-content: center;
    -o-justify-content: center;
    justify-content: center;
}


.flex-jc-sb{
	/* 09版 */
    -webkit-box-pack: space-between;
    /* 12版 */
    -webkit-justify-content: space-between;
    -moz-justify-content: space-between;
    -ms-justify-content: space-between;
    -o-justify-content: space-between;
    justify-content: space-between;
}

.flex-jc-sa{
	/* 09版 */
    -webkit-box-pack: space-around;
    /* 12版 */
    -webkit-justify-content: space-around;
    -moz-justify-content: space-around;
    -ms-justify-content: space-around;
    -o-justify-content: space-around;
    justify-content: space-around;
}

.flex-jc-fe{
    /* 09版 */
    -webkit-box-pack: flex-end;
    /* 12版 */
    -webkit-justify-content: flex-end;
    -moz-justify-content: flex-end;
    -ms-justify-content: flex-end;
    -o-justify-content: flex-end;
    justify-content: flex-end;
}

.flex-ai-c{
	/* 09版 */
    -webkit-box-align: center;
    /* 12版 */
    -webkit-align-items: center;
    -moz-align-items: center;
    -ms-align-items: center;
    -o-align-items: center;
    align-items: center;
}