/* Container */
.container{
    margin: 0 auto;
    width: 70%;
}

/* Registration */
#div_reg{
    border: 1px solid gray;
    border-radius: 3px;
    width: 470px;
    height: 370px;
    box-shadow: 0px 2px 2px 0px  gray;
    margin: 0 auto;
}

#div_reg h1{
    margin-top:0px;
    font-weight: normal;
    padding:10px;
    background-color:cornflowerblue;
    color:white;
    font-family:sans-serif;
}

#div_reg div{
    clear: both;
    margin-top: 10px;
    padding: 5px;
}

#div_reg .textbox{
    width: 96%;
    padding: 7px;
}

#div_reg input[type=submit]{
    padding: 7px;
    width: 200px;
    background-color: lightseagreen;
    border: 0px;
    color: white;
}

/* Response */
.response{
    padding: 6px;
    display: none;
}

.exists{
    color: green;
}

.not-exists{
    color: red;
}