<form class="search_h" action="/search/" method="get" onsubmit="this.sfSbm.disabled=true">
<input type="text" class="query-field" size="20" maxlength="80" name="q" placeholder="Введите ваш запрос сюда...">
<input type="submit" class="query-search" name="sfSbm" value="Поиск">
</form>

.search_h { background:url(img/bg.png) repeat-x; padding: 0 8px; position: relative; width:351px!important; line-height:40px; border-radius: 2px;border: 1px solid #a2afc0!important;}
input.query-field { background:#fff; width:260px; height:16px; line-height:16px; border-radius: 2px;border: 0 none!important; margin: 0; padding: 4px;
  -moz-transition: .1s ease;
  -ms-transition: .1s ease;
  -webkit-transition: .1s ease;
  -o-transition: .1s ease;
  transition: .1s ease;
  }
input.query-search {background: url(img/search.png) no-repeat;border: 0 none;width: 79px; height: 25px;border-radius: 2px; color:#fff;}