* {
    padding: 0;
    margin: 0;
}
a {
    text-decoration: none;
    color: #fff;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    height: 50px;
    background-color: brown;
}

.head {
    height: 100%;
    color: #fff;
    font-size: 30px;
    text-align: center;
    align-items: center;
}

.head label {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%,0);
    width: 70px;
    height: 50px;
}

.menu {
    position: fixed;
    top: 50px;
    left: 50%;
    transform: translate(-50%, 0);
    display: block;
    margin: 0 auto;
    align-items: center;
    justify-content: space-between;
    width: 0;
    color: #fff;
    font-size: 0;
    transition: all .2s linear;
}

#check-menu{
    display: none;
}

#check-menu:checked ~ .menu {
    width: 100%;
    font-size: 0.8em;
}

#check-menu:checked ~ .menu .menu__item {
    border: solid 1px #fff;
}

.menu__item {
    display: flex;
    background-color: brown;
    border: none;
    height: 25%;
    align-items: center;
    justify-content: center;
}







.container {
    display: flex;
    margin-top: 50px;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 100%;
}
.container__item {
    flex-basis: 320px;
    flex-grow: 1;
    width: 30%;
    height: 40vh;
    max-height: 600px;
    min-height: 300px;
    background-color: coral;
    border: rgb(255, 255, 255) 5px solid;
    color: #fff;
    text-align: center;
    font-size: 4em;
}

.color1 {
    background-color: rgb(19, 161, 119);
}