.foster-content { padding: 20px; background: #fff; .content-title { height: 32px; margin-bottom: 10px; >span { color: #333; font-size: 16px; margin-bottom: 10px; } } .foster-query { margin-bottom: 10px; >input { width: 180px; margin-right: 20px; } >div { margin-right: 20px; } button { margin-left: 20px; } >span { margin-left: 20px; >span { margin-left: 10px; } } } }