* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
html {
font-size: 62.5%;
line-height: 1;
} 
    p {
    font-size: 12px;

    }
    .three-columns {
    -webkit-column-count: 3; 
    -moz-column-count: 3; 
    column-count: 3;
    -webkit-column-gap: 20px; 
    -moz-column-gap: 20px; 
    column-gap: 20px;
    -webkit-column-gap: 2rem; 
    -moz-column-gap: 2rem; 	
    column-gap: 2rem;
    }