*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}
body{
    background-color: azure;
}
header{
    background-color: #222222;
    color: #ffffff;
    padding: 16px;
    text-align: center;
}
nav{
    display: flex;
    justify-content: center;
    background-color: #555555;
    padding: 10px;
}
nav a{
    color: yellow;
    text-decoration: none;
    margin: 0 16px;
}
nav a:hover{
    color: red;
}
ul{
    list-style-type: none;
}
ul li{
    display: inline-block;
    width: 150px;
    position: relative;
}
.submenu{
    display: none;
    position: absolute;
    background-image: linear-gradient(to right, black, white);
}
.submenu li{
    padding-top: 2px;
    padding-bottom: 2px;
    border: 1px dotted white;
}
.menu li:hover .submenu{
    display: block;
}
.products{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 30px;
}
.product{
    background-color: white;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 0 10px rgbd(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.product img{
    width: 100px;
    height: 100px;
    border-radius: 4px;
}
button{
    padding: 5px;
    margin: 10px;
    border: 1px solid #ccc;
    border-radius: 20px;
    background-color: green;
    color: white;
}
button:hover{
    background-color: red;
    color: yellow;
    cursor: pointer;
}