.main {
    height: 100%;
    position: absolute;
    left: 3%;
    right: 3%;
    background: linear-gradient(to top, var(--secondary-color), var(--primary-color)) fixed;
}

.tab-yes {
    height: 100%;
    width: 10%;
    float: left;
    position: fixed;
    z-index: -1;
    background: var(--yes);
}
.tab-no {
    height: 100%;
    width: 10%;
    float: right;
    position: fixed;
    z-index: -1;
    right: 0;
    background: var(--no);
}

.tab-yes:hover ~ .main {
    left: 5%;
    transition: 0.2s;
}

.tab-no:hover ~ .main {
    right: 5%;
    transition: 0.2s;
}

.post {
    background: white;
    border-radius: 14px;
    padding: 1rem;
    margin: 1rem;
    width: 20%;
}

.post:hover {
    background: linear-gradient(to left, var(--no) 50%, var(--yes) 50%);
    cursor: pointer;
    transition: 0.8s;
    color: white;
}