<style>
* {
    box-sizing: border-box;
}

.row{
    display: flex;
    flex-wrap: nowrap;
}

.container{
    display: flex;
    flex-wrap: nowrap;
}

.menucolumn{
    display: flex;
    flex-wrap: wrap;
    flex: 25%;
    max-width: 25%;
    padding: 2px;
    
}

.column{
    display: flex;
    flex-wrap: wrap;
    flex: 75%;
    padding: 2px;
    align-content: flex-start;
}

ul.no-bullets {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

img.main {
    width: 100%;
    border: 1px;
}

 img.main:hover {
    box-shadow: 0 0 10px 5px rgba(90, 90, 180, 0.5);
}

tr:nth-child(even) {
    background-color: #aaccaa;
}

</style>