/*footer start*/
footer{
    display: block;
    width: 100%;
    background: #383f4c;
    height: 228px;
    padding-top:30px;
}

.footer_main{
    width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
    color: #ffffff;
    font-size: 12px;
}

#footer_1 #one_a{
    font-size: 15px;
    margin-bottom: 25px;
}

#footer_1 #one_b,
#footer_1 #one_c
{
    line-height: 25px;
}

#footer_2{
    width: 365px;
    text-align: center;
    margin-top: 40px;
    margin-left: 100px;
}
#footer_2 ul{
    width: 365px;
    text-align: center;
}
#footer_2 li{
    display: inline-block;
    padding: 0 20px;
}

#footer_3 img{
    width: 100px;
}

#footer_3 p{
    padding: 10px 0;
    text-align: center;
}
#footer_3 #three_a{
    margin-right: 100px;
}

@media (max-width: 420px) {
    footer{
        height: auto;
    }

    .footer_main{
        width: 100%;
        height: auto;
    }

    #footer_1 {
        float: none;
        text-align: center;
    }

    #footer_2{
        float: none;
        margin: 0;
        margin-top: 10px;
    }

    #footer_2 ul{
        width: auto;
        margin: 0 auto;
    }

    #footer_3{
        float: none;
        padding: 0 20px;
    }
    #footer_3 #three_a{
        margin-right: 0;
    }

    #three_b{
        float: right;
    }
}

/*footer end*/