<table><tbody>
  <tr>
    <td class="gsc-search-button"><input type="image" src="https://www.google.com/uds/css/v2/search_box_icon.png" class="gsc-search-button gsc-search-button-v2" title="buscar"></td>
  </tr>
</tbody>
</table>
table.gsc-search-box td {
    vertical-align: middle;
}

td.gsc-search-button {
    width: 1%;
}

input.gsc-search-button, input.gsc-search-button:hover, input.gsc-search-button:focus {
    background-color: #00BBCC;
    background-image: none;
    border-color: #00BBCC;
    filter: none;
}

.cse .gsc-search-button input.gsc-search-button-v2, input.gsc-search-button-v2 {
    height: 13px;
    margin-top: 2px;
    min-width: 13px;
    padding: 6px 5px;
    width: 13px;
}

.cse input.gsc-search-button, input.gsc-search-button {
    background-color: #4D90FE;
    background-image: -moz-linear-gradient(center top , #4D90FE, #4787ED);
    border: 1px solid #3079ED;
    border-radius: 2px 2px 2px 2px;
    color: #FFFFFF;
    font-family: inherit;
    font-size: 11px;
    font-weight: bold;
    height: auto;
    min-width: auto; 
    padding: 10px 28px;
}

input.gsc-search-button {
    margin-left: 2px;
}

/** BOOTSTRAP BOX-SIZING **/

*, *:before, *:after {
  -webkit-box-sizing: inherit;
  -moz-box-sizing: inherit;
  box-sizing: inherit;
}
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