.pie_pagina{
    width: 100%;
    height: 50px;
    display: block;
    position: relative;
    background-color: #e6e6e6;
}
.grilla_footer{
    width: 80%;
    height: auto;
    display: none;
    margin: 0 auto;
    position: relative;
    text-align: right;
    padding: 30px 0 0;  
}
.redes{
    display: inline-block;
}
.red{
    width: 23px;
    height: auto;
    display: inline-block;
    vertical-align: top;
    margin: 0 12px;

    transition: all .2s ease-out;
    -webkit-transition: all .2s ease-out;
    -moz-transition: all .2s ease-out;
    -o-transition: all .2s ease-out;
    -ms-transition: all .2s ease-out;
}
.red:hover{
    transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    -ms-transform: scale(1.1);
}
@media screen and (min-width:767px){
    .pie_pagina{
        width: 100%;
        height: 70px;
        display: block;
        position: relative;
    }
    .grilla_footer{
        width: 80%;
        height: auto;
        display: block;
        margin: 0 auto;
        position: relative;
        text-align: right;
        padding: 30px 0 0;  
    }
    .redes{
        display: inline-block;
    }
    .red{
        width: 23px;
        height: auto;
        display: inline-block;
        vertical-align: top;
        margin: 0 12px;
    
        transition: all .2s ease-out;
        -webkit-transition: all .2s ease-out;
        -moz-transition: all .2s ease-out;
        -o-transition: all .2s ease-out;
        -ms-transition: all .2s ease-out;
    }
    .red:hover{
        transform: scale(1.1);
        -webkit-transform: scale(1.1);
        -moz-transform: scale(1.1);
        -o-transform: scale(1.1);
        -ms-transform: scale(1.1);
    }
}