body {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    --line-offset: calc((10vh + 8px) / 2);
}

.container {
    width: 100vw;
    height: 100vh;
    display: grid;
    grid-template-rows: 5fr 1fr;
    background: #021919;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
    display: flex;
}

.tab {
    width: calc(10vh + 8px);
    height: calc(10vh + 8px);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(0% 50%, 15% 0%, 85% 0%, 100% 50%, 85% 100%, 15% 100%);
    shape-outside: polygon(0% 50%, 15% 0%, 85% 0%, 100% 50%, 85% 100%, 15% 100%);
    z-index: 0;
    transition: width 0.5s;
}

.tab img {
    width: 10vh;
    height: 10vh;
    z-index: 10;
    cursor: pointer;
    clip-path: polygon(0% 50%, 15% 0%, 85% 0%, 100% 50%, 85% 100%, 15% 100%);
    shape-outside: polygon(0% 50%, 15% 0%, 85% 0%, 100% 50%, 85% 100%, 15% 100%);
    transition: width 0.5s;
}

[type=radio] {
    display: none;
}

.preview-list {
    background: linear-gradient(
            #021919,
            #021919 var(--line-offset),
            #efefef var(--line-offset)
    );
}

.tab {
    background: linear-gradient(
            #efefef,
            #efefef var(--line-offset),
            #021919 var(--line-offset)
    );
}

[type=radio]:checked ~ label ~ .content{
    text-align: center;
    z-index: 8;
}


[type=radio]:checked ~ label .tab{
    width: 0;
}

.content {
    position: absolute;
    background: #021919;
    top: 1vh;
    left: 0;
    width: 100vw;
    height: 80vh;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.content img {
    height: auto;
    width: 100vw;
}