* {
    font-family: sans-serif;
    box-sizing: border-box;
    margin: 0;
    text-align: center;
}

body{
    display: block;
    margin: auto;
    max-width: 18cm;
    padding: 0 0 1cm;
}

button {
    border: none;
    background-color: #DC3545; /* Red background */
    border-radius: 4px;
    padding: 8px 13px;
    margin: 6px 5px;
    font-weight: bold;
    color: white;
    cursor: pointer;
    box-shadow: 2px 2px 4px rgb(150, 150, 150);
    animation: none; /* No animation by default */
    transition: all .3s;
}

.buttons :nth-child(even)>button {
    background-color: #343A40; /* Dark background for even buttons */
}

button:hover {
    transform: scale(1.1);
    box-shadow: 2px 3px 4px rgba(120, 120, 120, 0.8);
}

.buttons{
    display: flex;
    border: 1px solid rgb(221, 221, 221);
    box-shadow: 1px 1px 20px rgba(201, 201, 201, 0.8);
    padding: 0.3cm;
    margin: 0.3cm;
    border-radius: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.h3{ 
    box-shadow: 1px 1px 20px rgba(201, 201, 201, 0.8);
    padding: 0.3cm;
    margin: 0 0.3cm;
    border-radius: 18px 0 18px 0;
}