@media (max-width: 549px) {
	#fp__development .backstage {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
	}

	#fp__development .hippo-link {
		padding: var(--length-1x) 0px var(--length-1x);
        width: 100%;
        text-align: center;
        background-color: var(--black-color);
        color: #fff;
        display: inline-table;
	}
	
	#fp__development .upper-link {
        margin: 0;
        background-color: var(--black-color);
        /*background-color: var(--active-color);*/
        width: 30vh;
        text-align: left;
        position: absolute;
        padding: 0px 15px;
        font-size: 12px;
        color: #fff;
        transform: rotate(-90deg);
        transform-origin: top right;
        top: 0;
        right: calc(var(--bs-upper-line-width) - 1px);
        height: var(--bs-upper-line-width);
        line-height: var(--bs-upper-line-width);
    }
    
    #fp__development .upper-link:hover {
        background-color: #fff;
        color: var(--active-color);
    }
}