.main{flex:1;overflow:hidden;background-color:var(--font-active-color);display:flex;justify-content:center;align-items:center}/*!* 왼쪽 사이드바 스타일 *!*/.page-preview{width:60px;height:60px;display:flex;justify-content:center;align-items:center;position:relative;cursor:pointer;font-size:1rem;text-align:center;word-break:break-word;white-space:normal;color:var(--dark-color);border:2px solid var(--btn-bd-color);border-radius:var(--btn-size);background-color:var(--light-color);flex-shrink:0}.page-preview::before{content:'';position:absolute;inset:0;opacity:0;pointer-events:none;background-color:var(--grid-bg-color);transition:opacity .25s ease-out}.page-preview:hover{cursor:pointer;border:2px solid var(--tertiary-color)}.page-preview.selected{border:2px solid var(--tertiary-color)}.page-preview.selected::before{opacity:1}