body{
    background: url("https://images.unsplash.com/photo-1514454529242-9e4677563e7b?ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&ixlib=rb-1.2.1&auto=format&fit=crop&w=1050&q=80") no-repeat center center fixed;
    background-size: cover;
    /*background-image: url("image/bgimg.jpg");*/
}

.container{
    margin: 100px auto;
    width: 50%;
}

h1{
    font-size: 35px;
}

#author{
    float: right;
}

.card{
    background-color: rgba(218, 144, 187, 0.7);
    width: 100%;
    padding: 20px;
    border-radius: 10px;
    min-height: 150px;
    box-shadow: grey 2px 2px 5px;
}

.card:hover{
    background-color: rgba(218, 144, 187, 0.9);
    box-shadow: grey 3px 3px 7px;
}

.center{
    margin-top: 20px;
    text-align: center;
}

.next-btn{
    width: 50px;
    height: 50px;
    color: darkblue;
    border: 2px green solid;
    border-radius: 50%
}

.footer{
    position: absolute;
    bottom: 10px;
    left: 10px;
    padding: 5px 5px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.6);
    text-decoration-line: none;
}

.footer > a{
    text-decoration-line: none !important;
    font-family: "Comic Sans MS", cursive ;
}

.red{
    color: red;
}

@media only screen and (max-width: 600px) {
    .container{
        margin: 20px auto;
        width: 90%;
    }

    .card{
        padding: 10px;
        min-height: 240px;
    }
}