.container{
    border:1px solid darkgrey;
    border-radius:3px;
    padding:5px;
    width:60%;
    margin:0 auto;
    letter-spacing:1px;
    font-family: sans-serif;
}

.container h1{
    margin-top: 0px;
    font-weight: normal;
    padding: 10px;
    background-color: cornflowerblue;
    color: white;
    font-family: sans-serif;
    text-align: center;
}

#div_content{
    width:60%;
    margin: 0 auto;
    height:200px;
}

#div_content div{
    margin-bottom:8px;

}
.clear{
    clear:both;
    margin-top: 20px;
}

select{
    pading: 5px;
    letter-spacing: 1px;
    height:30px;
}

select option{
    padding:5px;

}


/* media query */
@media screen and (max-width:800px){
    .container{
        width:80%;
    }
}

@media screen and (max-width:480px){
    .container{
        width:95%;
    }

    #div_content{
        width:90%;
    }
}