.sale-btn {
    -webkit-appearance: none;
    border: 0;
    outline: 0;

    position: relative;
    padding: 5px 15px;
    color: white;
    width: 100%;
    /* text-transform: uppercase; */
    border-radius: 5px;
    font-size: 16px;
    transition: 0.3s;
    cursor: pointer;
    font-weight: bold;

    animation: animateBg 3s linear infinite;
    background-image: linear-gradient(
        90deg,
        #2c56df,
        #969ce8,
        #2c56df,
        #969ce8
    );
    background-size: 300% 100%;
}

@keyframes animateBg {
    0% {
        background-position: 100% 0%;
    }
    100% {
        background-position: 0% 0%;
    }
}

.sale-btn:focus {
    outline: none !important;
}

div.sale-course-modal p.course-info {
    font-size: 16px;
    font-family: "Open Sans";
    margin-bottom: 2px;
}

div.sale-course-modal p.guest-message {
    font-size: 14px;
    color: orange;
    margin: 0;
    font-weight: 600;
}