右箭头css，箭头css

.box {
		position: relative;
}
.box::after {
        width: 4px;
        height: 4px;
        border-top: 1px solid;
        border-right: 1px solid;
        border-color: #222;
        content: '';
        position: absolute;
        right: 7px;
        top: 3px;
        transform: rotate(45deg);
}