.search {
    width: 240px;
    height: 38px;
    position: relative;
}

.search input {
    width: 100%;
    height: 100%;
    background: #eee;
    /* border-radius: 40px;加圆角边框 */
    padding-left: 20px;
    box-sizing: border-box;
    padding-right: 33px;
}

.search img {
    width: 17px;
    height: 17px;
    position: absolute;
    right: 9px;
    top: 50%;
    margin-top: -8.5px;
}