.backgroundimg{
    background-repeat: no-repeat;
    background-image:url(background_pc.png);
    background-repeat: no-repeat;
    width: 1080px;
    height: 763px;
    margin: 0 auto;
    position:relative;
}

.hrefemail{
    position: absolute;
    width: 153px;
    height: 20px;
    display: block;
    bottom: 82px;
    max-height: 763px;
    left: 68px;
}

/* Landscape */
@media only screen 
and (min-device-width: 375px) 
and (max-device-width: 812px) 
{ 
    .backgroundimg {
background-repeat: no-repeat;
background-image: url(background-mobile.png);
width: 100%;
height: 1500px;
margin: 0 auto;
background-size: cover;
    }

    .hrefemail{
position: absolute;
width: 301px;
height: 31px;
display: block;
bottom: 134px;
max-height: 763px;
left: 125px;
    }
}