web/header.css

.header{display:flex;flex-direction:column;position:relative}.header__inner{display:flex;align-items:center;justify-content:space-between}.header__logo{display:flex;flex:1}.header__logo:after{content:"";background:repeating-linear-gradient(90deg, var(--accent), var(--accent) 2px, rgba(0,0,0,0) 0, rgba(0,0,0,0) 16px);display:block;width:100%;right:10px}.header__logo a{flex:0 0 auto;max-width:100%}.header .menu{margin:20px 0}.header .menu__inner{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0}.header .menu__inner li.active{color:var(--accent-alpha-70)}.header .menu__inner li:not(:last-of-type){margin-right:20px;margin-bottom:10px;flex:0 0 auto}.header .menu__sub-inner{position:relative;list-style:none;padding:0;margin:0}.header .menu__sub-inner:not(:only-child){margin-left:20px}.header .menu__sub-inner-more{position:absolute;background:var(--background);box-shadow:var(--shadow);color:#fff;border:2px solid;margin:0;padding:10px;list-style:none;z-index:99;top:35px;left:0}.header .menu__sub-inner-more-trigger{color:var(--accent);user-select:none;cursor:pointer}.header .menu__sub-inner-more li{margin:0;padding:5px;white-space:nowrap}