* {
    box-sizing: border-box;
}
body {
    margin: 0;
    background-color:rgb(204, 204, 204)
}
.header {
    background-color: #2e2828;
    color: white;
    text-align: center;
    font-size: 35px;
    margin: 0;
}
.header h1{
    margin: 0;
}
.row {
    display: -webkit-flex;
    display: flex;
    background-color: #888888;
}
.column {
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
    padding: 5px; 
    --height: 30px;
    text-align: center;
    text-decoration: none;
    color: black;
}
.column:hover{
    background-color: rgb(163, 163, 163);
}
.kyaru_main {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    height: auto;
}

.column a {
    text-decoration: none;
    color: black;
    width: 100%;
}

.footer {
    background-color: #2e2828;
    padding: 10px;
    text-align: center;
    color: white;
    position: fixed;
    width: 100%;
    left: 0;
    bottom: 0;
  }
.footer a {
    text-decoration: none;
    color: white;
}
.footer a:hover {
    background-color:rgb(163, 163, 163);
} 

@media (max-width: 600px) {
    .row {
      -webkit-flex-direction: column;
      flex-direction: column;
    }
  }