unit-vh-vw-overflow-scroll-y-ref-iframe.html (950B)
1 <style> 2 body { overflow-y: scroll } 3 div { 4 width: 10px; 5 height: 10px; 6 background-color: #d64203; 7 } 8 </style> 9 10 <body> 11 <div id="a"></div> 12 <div style="height: 50px"></div> <!-- Unaffected by scrollbars. --> 13 <div id="c"></div> 14 <div style="height: 50px"></div> <!-- Unaffected by scrollbars. --> 15 16 <!-- Deliberately make scrollbars appear. --> 17 <div style="width: 500px; height: 500px; background-color: black"> 18 </body> 19 20 <script> 21 // client{Width, Height} consist of the area _inside_ the scrollbars, so these 22 // manually calculated units reflect the fact that with 'overflow: scroll' set, 23 // viewport units are sized taking the scrollbars into account. Since we're 24 // only dealing with 'overflow-y' here, only the width units are affected. 25 var vw = 0.01 * document.body.clientWidth; 26 document.getElementById('a').style.width = (50 * vw) + "px"; 27 document.getElementById('c').style.width = (35 * vw) + "px"; 28 </script>