html {
    box-sizing: border-box;
    font-size: 62.5%;
    /* =10px */
}

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

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ol,
ul {
    margin: 0;
    padding: 0;
    font-size: 100%;
    font-weight: normal;
}

body {
    font-size: 1.4rem;
    /* =14px */
}

ol,
ul {
    list-style: none;
}

img,
video {
    display: block;
    /* makes all images responsive */
    max-width: 100%;
    height: auto;
    border: none;
}

a {
    text-decoration: none;
    color: inherit;
}

a:active,
a:hover {
    outline: 0;
}

input,
textarea {
    border: none;
    background-image: none;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
}