(解決策)
<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title><meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/><style>*{ margin:0; padding:0;}html,body{ width:100%;height:100%}.b{ /*设置元素宽度包含边框宽度**/box-sizing: border-box; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; }main{margin-top:-50px;margin-left:-200px;padding-left:200px; padding-top:50px;overflow-y:scroll;float:left;background:#FF0000; width:100%; height:100%;}#left{ float:left; width:200px; height:100%; padding-top:50px; margin-top:-50px;overflow-y:scroll; background:#0000FF; z-index:2; position:relative }</style> </head><body><header style=" line-height:50px;height:50px; background:#666666; color:#FFFFFF; text-align:center;z-index:3; position:relative"> width:100%;height:50px;</header><div id="left" class="b" > <!--用于展示部分--> <div style="width:100%; height:33%; background:#00FF00">1</div> <div style="width:100%; height:33%; background:#666">2</div> <div style="width:100%; height:33%; background:#09F">3</div> <div style="width:100%; height:33%; background:#3C0">4</div> <div style="width:100%; height:33%; background:#3FF">5</div> <div style="width:100%; height:33%; background:#F3C">6</div> <!----------></div><main class="b"> <!--用于展示部分--> <div style="width:100%; height:33%; background:#3C0">1</div> <div style="width:100%; height:33%; background:#F3C">2</div> <div style="width:100%; height:33%; background:#3FF">3</div> <div style="width:100%; height:33%; background:#09F">4</div> <div style="width:100%; height:33%; background:#666">5</div> <div style="width:100%; height:33%; background:#00FF00">6</div> <!--------------></main</body></html>
試してください: table-cell+table-row
@q81999008
<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title><meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/><style>*{ margin:0; padding:0;}html,body{ width:100%;height:100%}.b{ /*设置元素宽度包含边框宽度**/box-sizing: border-box; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; }main{margin-top:-50px;margin-left:-200px;padding-left:200px; padding-top:50px;float:left;background:#FF0000; width:100%; height:100%;}#left{ float:left; width:200px; height:100%; padding-top:50px; margin-top:-50px; background:#0000FF; z-index:2; position:relative }</style> </head><body><header style=" line-height:50px;height:50px; background:#666666; color:#FFFFFF; text-align:center;z-index:3; position:relative"> width:100%;height:50px;</header><div id="left" class="b"> <div style=" overflow-y:scroll; height:100%; width:100%"> <!--用于展示部分--> <div style="width:100%; height:33%; background:#00FF00">1</div> <div style="width:100%; height:33%; background:#666">2</div> <div style="width:100%; height:33%; background:#09F">3</div> <div style="width:100%; height:33%; background:#3C0">4</div> <div style="width:100%; height:33%; background:#3FF">5</div> <div style="width:100%; height:33%; background:#F3C">6</div> <!----------> </div></div><main class="b"> <div style=" overflow-y:scroll; height:100%; width:100%"> <!--用于展示部分--> <div style="width:100%; height:33%; background:#3C0">1</div> <div style="width:100%; height:33%; background:#F3C">2</div> <div style="width:100%; height:33%; background:#3FF">3</div> <div style="width:100%; height:33%; background:#09F">4</div> <div style="width:100%; height:33%; background:#666">5</div> <div style="width:100%; height:33%; background:#00FF00">6</div> <!--------------> </div></main</body></html>
@q81999008 ありがとうございます。