.mytabs {
    display: flex;
    flex-wrap: wrap;
    padding-left: 25px;
}
.mytabs input[type="radio"] {
    display: none;
}

.mytabs .tab {
    width: 100%;
    order: 1;
    display: none;
}
.mytabs .tab h2 {
    color: black;
    font-size: 3em;
}

.mytabs input[type='radio']:checked + label + .tab {
    display: block;
}

.mytabs input[type="radio"]:checked + label {
    background: #a6ec88;
}