.footer{
    justify-content: flex-start;
    margin-top: 20px;
    text-align: center;
    padding: 0px;
}
footer li{
    display: inline-block;
    list-style-type: none;
    flex: 0 0 auto;
}
footer a{
    color: white;
    font-size: 15px;
    text-decoration: none;
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    margin: 50px;
}
@media screen and (max-width: 420px){
.footer{
    justify-content: flex-start;
    margin-top: 20px;
    text-align: center;
    margin-bottom: 20px;
}
footer li{
    list-style-type: none;
    flex: 0 0 auto;
}
footer a{
    color: white;
    font-size: 15px;
    text-decoration: none;
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    margin: 20px;
}
}    
@media screen and (min-width: 421px)and(max-width: 755px){
.footer{
        justify-content: flex-start;
        margin-top: 20px;
        text-align: center;
        margin-bottom: 20px;
}
footer li{
        list-style-type: none;
        flex: 0 0 auto;
}
footer a{
        color: white;
        font-size: 15px;
        text-decoration: none;
        font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}
} 
@media screen and (min-width: 756px) and (max-width: 1024px){
.footer{
        justify-content: flex-start;
        margin-top: 25px;
        text-align: center;
        margin-bottom: 20px;
}
footer li{
        list-style-type: none;
        flex: 0 0 auto;
}
footer a{
        color: white;
        font-size: 15px;
        text-decoration: none;
        font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}
}