h2{
    font-size: 32px;
    text-align: center;
}
.center {
    text-align: center;
}
.back {
    text-align: left;
}
body {
    padding: 0 40px;
    margin : 0;
    border-left: 300px solid rgb(40, 40, 40);
    border-right: 300px solid rgb(40, 40, 40);
    box-sizing: border-box;
    background-color: #ffff99;
}
.red {
    color: red;
    font-size: 32px;
}
.blue {
    color: blue;
    font-size: 32px;
}
.green {
    color: green;
    font-size: 32px;
}
.yellow {
    color: yellow;
    font-size: 32px;
}
.left{
    text-align: left;
}
.hr50 {
    width: 50%;
    margin-left: 0;
    height: 1px;
    background-color: gray;
    border: none;
}
hr {
    margin-left: 0;
    height: 2px;
    background-color: black;
    border: none;
}
img{
    margin : 0 auto;
    display: block;
}
.css_rubrik