.box { 
        position:relative;
        /*writing-mode:horizontal-tb;*/
        max-height:300px;
        /*background:#EAF8A3;*/
        padding:9px;
        margin:9px;
        display:grid;
        place-items: center;
        text-align:center;
}

.box>* {
        flex: 1 1 300px;
    }
    
.content {
}

a {
    text-decoration:none;
}

footer { 
    float:left

}

.container {
    width:100%;
    display:flex;
    flex-direction:row;
    flex-flow:row wrap;
    flex-wrap:wrap;
    justify-content: center;
}