body{
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    position: relative;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    background-image: url('../img/kensha.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.container{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
}
.container img{
    width: 80%;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
footer{
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
}