body {
}
<style >
.lby-all-inn {
    position: relative;
    overflow: hidden;
}

.play-now-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(to bottom, rgb(5 129 251) 0%, rgb(97 22 103) 100%);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lobby-wrap-inn-img img {
    display: block;
    margin: 0px auto;
}

.index_body {
    padding-top: 80px;
}

.lby-all-inn:hover .play-now-btn {
    opacity: 1;
}

.lby-all-inn:hover .lby-all-inn-img img {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

.lby-all-inn-img img {
    transition: transform 0.3s ease;
}

.lobby-button-wrap button {
    background: linear-gradient(to bottom, rgb(5 129 251) 0%, rgb(97 22 103) 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 10px;
    display: flex;
    gap: 10px;
    min-width: 170px;
    align-items: center;
}

.lobby-wrap-inn-text {
    padding: 30px 0px;
}

.lobby-button-wrap {
    display: flex;
    gap: 10px;
    \:;
    \: g;
    margin-bottom: 15px;
}

.lby-all ul {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding: 0px;
    gap: 15px;
}

    .lby-all ul li {
        border: 1px solid #de00ff;
        border-radius: 10px;
        background: #000;
    }

.game-name {
    padding: 10px;
    color: #fff;
    text-align: left;
}

</style >