.games-platform-background {
    background-image: url('../images/game_sample/sample_banner.png');
    background-position: center top;
    background-size: 100% auto;  
    background-repeat: no-repeat;      
}

.games-platform-wrap, .games-platform-wrap * {
    box-sizing: border-box;
}

.games-platform-wrap {        
    width: 1200px;
    margin: 0px auto 80px;
}

.games-platform-panes {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;   
    padding-top: 18vw;     
}

.games-platform-box {
    width: 25%;
    padding: 5px;
    margin: 5px 0;
    position: relative;
}    

.games-platform-btn {
    visibility: hidden;
    opacity: 0;
    text-align: center;
    position: absolute;
    top: 0;
    left: 0;        
    height: 100%;
    width: 100%;
    padding: 5px;
    background-color: rgba(0, 0, 0, .6);
    transition: all .2s linear;
}

.games-platform-box:hover .games-platform-btn {
    visibility: visible;
    opacity: 1;
}

.games-platform-btn .games-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    padding: .8em 1.5em;
    border-radius: 0;
    color: #b5b5b6;        
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;  
    background-color: rgba(0, 0, 0, .8);
    border: 2px solid #3b3933;
}

.games-platform-btn .games-btn:before {
    position: absolute;
    content: '';
    top: 50%;
    left: 50%;
    height: 0;
    width: 0;
    border-radius: 50%;
    background: #06396d;
    z-index: -1;
    -webkit-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    -webkit-transition: width 0.3s, height 0.2s ease-in-out, border-radius: 0.1s linear;
    -webkit-transition-delay: 0s, 0s, 0.05s;
            transition: width 0.3s, height 0.2s ease-in-out, border-radius 0.1s linear 0.05s;
}

.games-platform-btn .games-btn:hover {
    color: #fff;
    border-color: #111111;
}

.games-platform-btn .games-btn:hover:before {
    width: 100%;
    height: 100%;
    border-radius: 0;
    color: #fff;
}