.require-form{
    height:20px;
}
.require-form:after{
    color:red;
    font-size: 14px;
    vertical-align: middle;
    position:relative;
    top:1px;
    content: '*';
}

.require-form-before:before{
    color:red;
    font-size: 14px;
    vertical-align: middle;
    position:relative;
    top:1px;
    content: '*';
}