Collapse Componet style

style.css

.wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    height: 100vh;
    background-color: rgb(228, 239, 239);
    padding-top: 40vh;
}

.pannel {
    width: 400px;
    text-align: left;
}

.heading {
    background-color: #bfa;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    color: #000;
    font-size: 20px;
    line-height: 20px;
    border: 1px solid rgb(212, 240, 205);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.content {
    font-size: 20px;
    background: #fff;
    border: 1px solid #fff;
    border-top: none;
    padding: 0 20px;
    color: #000000;
    overflow: hidden;
}

.contentInner {
    padding: 20px 0;
}