.about{height:calc(100vh - 230px)}.contentBox{padding:20px 0;width:800px;height:calc(100vh - 380px);border:1px solid #ccc;margin-top:20px;box-sizing:border-box;overflow:auto}.contentItem{padding:0 20px;font-size:16px;margin-bottom:20px}.contentItem p{margin-bottom:5px;line-height:28px;white-space:pre-wrap}.inputBox{position:fixed;width:800px;height:50px;bottom:180px;left:50%;transform:translateX(-50%)}.input{flex:1;margin:0 50px;height:100%;border:2px solid #ccc;border-radius:12px}