body {
    overflow-y: scroll;
    background-color: #F8F8F8;
    text-shadow: 0 0.05rem 0.1rem rgb(0 0 0 / 5%);
}
h1, h2, h3 {
    text-shadow: 0 0.05rem 0.1rem rgb(0 0 0 / 30%);
}
.bg-light {
    background-color: rgba(255,255,255,0.5)!important;
    backdrop-filter: blur(10px);
}

.accordion-button:focus {
    box-shadow: none;
    /* border-color: rgba(0,0,0,.125); */
}

.problem_content img {
    max-width: 100%;
    height: auto;
}