.combobox {
    background: url("ddown.png") no-repeat scroll right center #FFFFFF;
    border: 1px solid #CCCCCC;
    border-radius: 8px 8px 8px 8px;
    display: inline-block;
    height: 34px;
    line-height: 33px;
    position: relative;
    padding: 5px;
    width: 100%;
    outline: none;
}
.combobox, .options {
    color: #3E3E3E;
    cursor: pointer;
    font-family: arial,sans-serif;
    font-size: 14px;
    font-size: 14px;
}
 
.combobox_empresa {
    background: none repeat scroll 0 0 transparent;
    border: 1px solid #CCCCCC;
    border-radius: 0 0 0 0;
    color: #DC291A;
    display: inline-block;
    float: left;
    height: 24px;
    line-height: 24px;
    position: relative;
    padding: 0px;
    width: 370px;
}
.combobox_empresa, .options {
    color: #3E3E3E;
    cursor: pointer;
    font-family: arial,sans-serif;
    font-size: 14px;
 }