phiaryCode デモのコードです. html <body> <div class='row'> <div class='item item1'>item1</div> <div class='item item2'>item2</div> <div class='item item3'>item3</div> <div class='item item4'>item4</div> <div class='item item5'>item5</div> </div> </body> css body { margin: 0px; } .row::before, .row::after { clear: both; content: ''; display: block; } .item { float: left; width: 50vw; height: 100vh; text-align: c
