body {
    margin: 0;
    line-height: 1.8;
}

* {
    font-family: 'Montserrat', sans-serif;
    box-sizing: border-box;
}

div.tabs {
    max-width: 500px;
    margin: 30px auto;

}

.tabs__item--content {
    padding: 20px;
}
ul.tabs-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

li.tabs-nav__item {
    background-color: #2dc4a2;
    display: inline-block;
    line-height: 3;
    padding: 0 20px;
    margin: 5px;
    cursor: pointer;
    transition: all 0.4s;
}

ul.tabs-nav,
body{
    background-color: #f4f0f1;
}

li.tabs-nav_item--active,
li.tabs-nav__item:hover{
    background-color: #fafafa;
}