body {
    margin: 0;
    padding: 0;
    /*background-color: #263238;*/ /* Sayfa arka planı beyaz */
}


.kayan-yazi {
    width: 100%;
    overflow: hidden;
    background: transparent; /* arkaplan */
    /*border: 1px solid #ddd;*/
    padding: 8px 0;
}

    .kayan-yazi span {
        display: inline-block;
        white-space: nowrap;
        padding-left: 100%; /* dışarıdan başlasın */
        font-size: 30px;
        font-weight: bold;
        color: #8BC34A;
        animation: kayanMetin 40s linear infinite;
    }


.kayan-yaziWallboard {
    width: 100%;
    overflow: hidden;
    background: transparent; /* arkaplan */
    /*border: 1px solid #ddd;*/
    padding: 8px 0;
}

    .kayan-yaziWallboard span {
        display: inline-block;
        white-space: nowrap;
        padding-left: 100%; /* dışarıdan başlasın */
        font-size: 30px;
        font-weight: bold;
        color: #8BC34A;
        animation: kayanMetin 40s linear infinite;
    }

@keyframes kayanMetin {
    from {
        transform: translateX(0%);
    }

    to {
        transform: translateX(-100%);
    }
}