.arrow_box_right {
    position: relative;
    background: #88b7d5;
    border: 4px solid #c2e1f5;
}

.arrow_box_right:after,
.arrow_box_right:before {
    left: 100%;
    top: 50%;
    border: solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}

.arrow_box_right:after {
    border-color: rgba(136, 183, 213, 0);
    border-left-color: #88b7d5;
    border-width: 12px;
    margin-top: -12px;
}

.arrow_box_right:before {
    border-color: rgba(194, 225, 245, 0);
    border-left-color: #c2e1f5;
    border-width: 18px;
    margin-top: -18px;
}