CSS

body{
    color: #ff8413;
    background-color: #36454f;
}
.akapit1 {
    background-color: #c0c0c0;
    border: 5px solid black;
    float:left;
    width:34%;
}
.akapit2 {
    background-color: #808080;
    border: 5px solid violet;
    float:middle;
    width:31%;
}
.akapit3 {
    background-color: #3d3d3b;
    border: 5px solid red;
    float:right;
    width:33%;
}
.akapit1, .akapit2, .akapit3 {
    display:inline-block;
}

h1 {
    text-align: center;
}

.lista {

}
h3 {
    text-align: center;
}