*,
*:before,
*:after {
    box-sizing: border-box;
}

body {
    padding: 0;
    margin: 0;
    position: relative;
    height: 100%;
}

ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

a {
    text-decoration: none;
    outline: none;

    &:focus {
        outline: none;
    }
}

button {
    cursor: pointer;

    &:focus {
        outline: none;
    }
}