flexgrid.css - just the css

/* Flexbox Columns */

.flex-columns {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-flex-wrap: nowrap;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
}

.justify-flexstart {
    -webkit-justify-content: flex-start;
    -ms-flex-pack: start;
    justify-content: flex-start;
}

.justify-center {
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.justify-spacebetween {
    -webkit-justify-content: space-between;
    -ms-flex-pack: justify;
    justify-content: space-between;
}

.align-items-flexstart {
    -webkit-align-items: flex-start;
    -ms-flex-align: start;
    align-items: flex-start;
}

.align-items-center {
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
}

.align-items-stretch {
    -webkit-align-items: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
}

/* align-content is for multiline columns */
.align-content-flexstart {
    -webkit-align-content: flex-start;
    -ms-flex-line-pack: start;
    align-content: flex-start;
}

.align-content-center {
    -webkit-align-content: center;
    -ms-flex-line-pack: center;
    align-content: center;
}

.align-content-spacebetween {
    -webkit-align-content: space-between;
    -ms-flex-line-pack: justify;
    align-content: space-between;
}

/* Individual Column Width */

.flexfallback { } /* ALWAYS include this in each column, plus an individual size below. */

.flexcol-auto {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: auto;
}

.flexcol-half {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 48%;
}

.flexcol-third {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 31%;
}

.flexcol-two-thirds {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 66%;
}

.flexcol-fourth {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 23%;
}

.flexcol-three-fourths {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 75%;
}

.flexcol-fifth {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 18%;
}

/* No Flexbox? No Problem. */

.no-flexbox .flex-columns {
    display: block;
    clear: both;
}

.no-flexbox .flexfallback {
    width:100%; margin-right:4%; position:relative; float:left;
}

.no-flexbox .flexfallback:last-child {
    clear:right; margin-right:0;
}

.no-flexbox .flexcol-auto {
    display: inline-block;
    width: auto;
}

.no-flexbox .flexcol-half {
    display: block;
    width: 48%;
}

.no-flexbox .flexcol-third {
    display: block;
    width: 30.66%;
}

/* Revised Version that Adjusts for Visual Enhancements
.no-flexbox .flexcol-third {
    display: block;
    width: 28.66%;
} */

.no-flexbox .flexcol-two-thirds {
    display: block;
    width: 65.33%;
}

.no-flexbox .flexcol-fourth {
    display: block;
    width: 22%;
}

.no-flexbox .flexcol-three-fourths {
    display: block;
    width: 74%;
}

.no-flexbox .flexcol-fifth {
    display: block;
    width: 16.8%;
}

@media screen and (min-width: 320px) and (max-width: 768px) {
    
/* Flexbox Columns */

.flex-columns {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

/* Individual Column Width */

.flexcol-auto {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: auto;
}

.flexcol-half {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexcol-third {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexcol-two-thirds {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexcol-fourth {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexcol-three-fourths {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexcol-fifth {
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
    -webkit-flex: 0 1 auto;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
    -webkit-align-self: auto;
    -ms-flex-item-align: auto;
    align-self: auto;
    width: 100%;
}

.flexfallback {
    margin-bottom: 10px;
}
   
    
}