#search { display: flex; align-items: center; justify-content: center; flex: 1; height: 50px; padding: 2px 10px; text-align: center; } #sr-label { display: flex; width: 50px; justify-content: end; } #sr-label > a { width: 30px; height: 30px; } #form { border: solid 1px black; border-radius: 10px; width: 120px; height: 20px; padding: 3px; flex: 1; } #form form { display: flex; align-items: center; justify-content: center; height: 20px; } #form input { width: 90%; border-width: 0; background-color: inherit; padding: 0; } input:focus { outline: none; /* 去掉 focus 轮廓 */ }