CSSでボタンに矢印を加える

    .button {
        position: relative;
        display: inline-block;

        &::after {
            position: absolute;
            top: 45%;
            right: 23px;
            width: 6px;
            height: 6px;
            content: "";
            border: 2px solid;
            border-color: #fff #fff transparent transparent;
            transform: rotate(45deg);
        }
    }