html,
body,
div,
ul,
ol,
li,
p,
img,
a,
span,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0px;
    padding: 0px;
}

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

a {
    text-decoration: none;
}

button {
    border: none;
}