main{position:relative;min-height:100vh;display:flex;flex-direction:column}.content{display:flex;flex:1}.columns{display:flex;flex:1;min-width:0}#region_1{position:relative;order:1;padding:0 7px 0 7px;width:25%;min-width:300px}#region_2{position:relative;flex:1;order:2;padding:0 7px 200px 7px;min-width:0}#region_3{position:relative;order:3;padding:0 7px 0 7px;width:25%;min-width:300px}