body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    background-color: #111111;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        #141414 0%,
        #141414 20%,
        #1c1c1c 20%,
        #1c1c1c 40%
    );
    background-size: 40px 40px;
    animation: move-lines 4s linear infinite;
}

@keyframes move-lines {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 0 80px;
    }
}

.content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); 
    text-align: center;
}


.stumble-button {
    background-color: #C93131;
    color: #ffffff;
    padding: 13px 25px;
    margin: 3px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.92em;
    font-family: 'Roboto', sans-serif; 
    transition: all 0.3s ease;
    border: none;
}

.stumble-button:hover {
    box-shadow: 2px 0px 10px #C93131;
}