html,
body,
div,
span,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
address,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strong,
sub,
sup,
var,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video {
    background: transparent;
    border: 0;
    font: inherit;
    font-size: 100%;
    margin: 0;
    outline: 0;
    padding: 0;
    vertical-align: baseline;
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section {
    display: block;
}
blockquote, q {
    quotes: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

*, 
*:before, 
*:after {
       -moz-box-sizing: border-box; 
    -webkit-box-sizing: border-box; 
            box-sizing: border-box;
}
html,
body,
div,
span,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
address,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strong,
sub,
sup,
var,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video {
    background: transparent;
    border: 0;
    font: inherit;
    font-size: 100%;
    margin: 0;
    outline: 0;
    padding: 0;
    vertical-align: baseline;
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section {
    display: block;
}
blockquote, q {
    quotes: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

Make all elements use sensible box model
Make all elements use sensible box model