Box 1
Box 2
.box1{ writing-mode: horizontal-tb; border: 5px solid rebeccapurple; inline-size: 100px; margin: 10px; } .box2{ writing-mode: vertical-lr; border: 5px solid rebeccapurple; inline-size: 100px; margin: 10px; }
<div class="box"> <div class="box1"> Box 1 </div> <div class="box2"> Box 2 </div> </div>