.arc{ 
padding: 20px;
column-count: 3; 
column-gap: 40px;
#column-rule: 1px solid lightblue;
text-align:justify;
}
.arc h1{
column-span: all;
}
.arc p:first-of-type:first-letter {
font-size:3em;
float: left;
line-height: 50%;
margin:0.1em 0.1em 0.1em -0.05em;
}
.arc img{
height:auto;
width:100%;
}

@media screen and (max-width: 1900px) { .arc {column-count:2;}} 	
@media screen and (max-width: 1200px) { .arc {column-count:1;}}