.radio input[type=radio],
.radio input[type=checkbox] {
    display: none;
    /* Esconde os inputs */
}

.radio input[type=radio]+label,
.radio input[type=checkbox]+label {
    display: inline-block;
    height: 20px;
    padding: 0 0 0 25px;
    margin: 0 10px 0 0;
    background-image: url(http://www.webcis.com.br/images/imagens-noticias/checkbox/ico-master.png);
    background-repeat: no-repeat;
    background-position: 0 0;
}

.radio input[type=checkbox]+label {
    background-position: 0 -60px;
    /* Muda a posição do background só no checkbox */
}

.radio input[type=radio]:checked+label {
    background-position: 0 -30px;
}

.radio input[type=checkbox]:checked+label {
    background-position: 0 -90px;
}	
/* #wizard .stepContainer {
    height: 50%;
} */