.slotwrapper {
    overflow: hidden;
    display: inline-block;
    border: 1px solid #000;
    height: 200px;
}
.slotwrapper ul {
    padding: 0;
    margin: 0;
    list-style: none;
    position: relative;
    float: left;
}
.slotwrapper ul {
    width: 200px;
    height:200px;
    font-size: 200px;
    line-height: 200px;
    text-align: center;
}
.slotwrapper ul li img {
    vertical-align: top;
}

.container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #f8f9fa; /* Color de fondo */
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}