.section-with-triangle-top-left,
.section-with-triangle-bottom-right {
    position: relative;
    z-index: 1;
}
.section-with-triangle-top-left::after {
    top: 0;
    left: 0;
    border-right: 12rem solid transparent;
    border-top: 12rem solid #FA5A0F;
}

.section-with-triangle-bottom-right::after {
    bottom: 0;
    right: 0;
    border-left: 12rem solid transparent;
    border-bottom: 12rem solid #FA5A0F;
}

@media (max-width: 576px) {
    .section-with-triangle-bottom-right::after {
        border-left: 1rem solid transparent;
        border-bottom: 1rem solid #FA5A0F;
    }
    .section-with-triangle-top-left::after {
        border-right: 1rem solid transparent;
        border-top: 1rem solid #FA5A0F;
    }
}

.section-with-triangle-top-left::after,
.section-with-triangle-bottom-right::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    z-index: -1;
}