.example {
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    margin: 2rem 0;
    position: relative;
}
.example--border {
    border: 1px solid #d1d5db;
}
.example__ribbon {
    height: 8rem;
    width: 8rem;
    overflow: hidden;
    position: absolute;
    z-index: 1;

    &::before,
    &::after {
        border: 0.25rem solid #4338ca;
        content: '';
        position: absolute;
        z-index: -1;
    }
}
.example__title {
    background-color: #818cf8;
    color: #fff;
    position: absolute;
    padding: 0.5rem 0;
    text-transform: uppercase;
    text-align: center;
    // It is a result of height * Math.sqrt(2)
    width: 181px;
}
.example__ribbon--tr {
    top: -0.5rem;
    right: -0.5rem;

    &::before,
    &::after {
        border-top-color: transparent;
        border-right-color: transparent;
    }
    &::after {
        bottom: 0;
        right: 0;
    }
    &::before {
        top: 0;
        left: 0;
    }
    .example__title {
        transform: translate(-13px, 30px) rotate(45deg);
    }
}
.example__content {
    align-items: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1rem;
}
.example__content--small {
    height: 20rem;
}
.example__content--medium {
    height: 30rem;
}
.example__content--large {
    height: 40rem;
}