/*** for PC Browser ***/
@media (min-width:401px)
{
<style>
    img{max-width: 100%;
    height: atuo;}

 
</style>
}


/*** for Smart Phone ***/
@media (max-width:400px)
{
<style>
    img{max-width: 100%;
    height: atuo;}

   
</style>
}