.close{
    display: block;
    position: absolute;
    top: 40px;
    right: 40px;
    background: rgb(255, 0, 0);
    color: cornsilk;
    text-decoration:none ;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    border-color: white;
}