.education-banner {
    background: #3481ffba;
    position: relative;
    padding: 200px 0 300px;
    overflow: hidden;
}
.education-banner:after {
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    left: 0;
    height: 0;
    border-right: 100vw solid #fff;
    border-top: 200px solid transparent;
    width: 0;
    z-index: 0;
}