.search { overflow:hidden; padding: 1px 2px; width: 220px; height: 30px; background: url(http://www.qstheory.cn/n7/images/v7_sousuo_20170711_01.jpg); }
.search .keyword { padding:4px 10px; width:186px; font-size:12px; color:#999; line-height:18px; border:0px; vertical-align:top; }
.search .send { float:right; width:28px; height:28px; }