.background{
    width: 640px;
    height: 480px;
    background-color: #000;
    vertical-align: middle;
    max-width: 90vw;
    margin: 0 auto;
}

.background>div{
    padding-top: 120px;
    margin: auto;
    max-width: 90vw;
}

.message{
    width: 460px;
    height: 240px;
    margin: auto;
    background-color: #fff;
    display: grid;
    grid-template-rows: 1fr 1fr;
    grid-template-columns: auto auto;
    max-width: 90vw;
}

#kuma{
    width: 120px;
    margin: auto auto auto 0;
    grid-row: 1/3;
    grid-column: 1;
}

#text{
    display: block;
    margin: auto auto 14px auto;
    grid-row: 1;
    grid-column: 2;
    font-size: 14px;
    max-width: 90vw;
}

#create{
    grid-row: 2;
    grid-column: 2;
    margin: 14px auto auto auto;
    text-align: center;
}
#create>a{
    background-color: rgb(0, 0, 255);
    border: 1px solid #999;
    border-radius: 5px;
    font-size: 14px;
    font-weight: bold;
    padding: 14px 24px;
    margin: 0 auto;
    color: #fff;
    text-decoration: none;
}