form{
    margin: 0 auto;
    width: 100%;
    max-width: 500px;
    box-sizing: border-box;
    margin-top: 4%;
    border-radius: 7px;
    margin-bottom: 5%;
}
form h2
{
    text-align: center;
    letter-spacing: 1px;
    font-family: arial;
    color:#003f80;
}
label
{
    font-size: 19px;
}
input, textarea, select
{
    margin: 0 auto;
    width: 100%;
    margin-bottom: 15px;
    padding: 5px;
    box-sizing: border-box;
    border: 1px solid #000;
    font-size: 16px;
    border-radius: 4px;
}
#perfil
{
    border: none;
}
label #informacion
{
    font-size: 15px;
}
#boton{
    background:#003f80 ;
    color:#fff;
    padding: 8px;
    font-size: 20px;
    -moz-transition: .4s linear;
    -webkit-transition: .4s ease-out;
    transition: .4s linear;
}
#boton:hover
{
    cursor:pointer;
    background-color:#203c74 ;
    -moz-transition: .4s linear;
    -webkit-transition: .4s ease-out;
    transition: .4s linear;
}
           
.sexo
            {
                float:left;
                overflow: hidden;
            }
            #hombre
            {
                width: 70px;
            }
            #checkbox1
            {
                width: 40px;
                margin-right: 40px;
                margin-top: 5px;
            }
            #mujer
            {
                width: 55px;
                margin-left: 50px;
            }
            #checkbox2
            {
                width: 40px;
                margin-right: 40px;
                margin-top: 5px;
            }

@media screen and (max-width: 1000px) {
    label
    {
        font-size: 18px;
    }
    input, textarea, select
    {
        padding: 4px;
    }
    #boton
    {
        padding: 6px;
        font-size: 18px;
    }
}
@media screen and (max-width: 600px) {
    #seleccion
    {
        width: 50px;
    }
    
     #checkbox1, #checkbox2
    {
        border: 5px solid #000;
        font-size: 16px;
        border-radius: 4px;
    }
    form
    {
        width: 90%;
        margin-bottom: 20%;
        margin-top: 10%;
    }
    form h2
    {
        font-size: 18px;
    }
}

@media screen and (max-width: 400px) {
    #seleccion
    {
        width: 40px;
    }
    
}