* {
    font-family: Helvetica;
    box-sizing: border-box;
}

body {
    background-color: LightSalmon;
    text-align: center;
}

.kontener {
    width: 100%;
    /* content: ""; */
    /* display: table; */
    clear: both;
}

header {
    width: 100%;
    float: left;
}

.lewa-kolumna {
    width: 30%;
    float: left;
}

.lewy-gorny {
    height: 400px;
    padding: 10px;
}

.lewy-dolny {
    background-color: DarkSalmon;
    height: 100px;
    padding: 10px;
}

.prawy {
    background-color: DarkSalmon;
    width: 70%;
    height: 500px;
    float: left;
    overflow: auto;
    padding: 10px;
}

/* .kontener::after {
 
} */

img {
    width: 100%;
}

.filtr {
    font-style: italic;
    font-size: 200%;
    padding: 10px;
}

.filtr:hover {
    color: GhostWhite;
}

table {
    width: 70%;
    border: 1px dotted Maroon;
    margin: auto;
    border-collapse: collapse;
}

td, th {
    border: 1px dotted Maroon;
    padding: 8px;
}