main.css

body 
{
    background-color: lightblue;
}

h1
{
  text-align: center;
  letter-spacing: 5px;
}

.addButton
{
    background-color: #008CBA;
    border: none;
    border-radius: 8px;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    transition: all 0.5s;
    cursor: pointer;
}

.addButton span 
{
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.addButton span:after 
{
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

.addButton:hover span 
{
  padding-right: 25px;
}

.addButton:hover span:after 
{
  opacity: 1;
  right: 0;
}

p 
{
    text-align: justify;
    letter-spacing: 3px;
}

input
{
    padding: 12px 20px;
    margin: 8px 0;
    box-sizing: border-box;
}

h3
{
    text-align: justify;
    letter-spacing: 3px;
}

ul
{
    text-align: justify;
    letter-spacing: 3px;
}

button
{
    background-color: #008CBA;
    border: none;
    border-radius: 4px;
    color: white;
}