<a href="https://geildanke.com">
<article class="className">
<button class="button">
<div>
<h1>, <h2>, ...
<img src="https://geildanke.com/images/michaela.jpg">
<nav>
<p>
<section>
<ul>
<ol>
<li>
<ol>
<li></li>
<li></li>
</ol>
class=""
id=""
href=""
src=""
element
.[class]
#[idName]
[selector]:hover
.button {
background-color: #FF0000;
}
color
font-family
font-weight
text-align
text-decoration
text-transform
background-color
border
border-radius
box-shadow
opacity
display
margin
padding
position
width
min-width
max-width
height
min-height
max-height
transform
z-index
align-items
flex-direction
flex-flow
flex-wrap
const variableName = {};
document.getElementById('idName');