.marquee {
    width: 100%;
    overflow: hidden;
    background: #fdd600;
    color: #fff;
    white-space: nowrap;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    height: 50px;
}

.marquee p {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 10s linear infinite;
}

@keyframes marquee {
    0%   { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}