Sejarah Monitor (Hanif YS)

body{
background: #2F4F4F;
font-family: roboto;
color: black;
}
h1,h2{
text-align: center;
}
.kotak{
width: 600px;
height: auto;
margin: 10px auto;
}
.koran{
/*jumlah column*/
-webkit-column-count: 3; /* support Chrome, Safari, Opera */
-moz-column-count: 3; /* support Firefox */
...