body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
.banner {
    width: 100%;
    height: 100px;
    background-color: #030303;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.banner h1, p {
    margin: 0;
    padding: 0;
}
.menu {
    width: 100%;
    background-color: #2d2d2d;
    display: flex;
    justify-content: center;
    padding: 10px;
}
.menu-item {
    width: 10%;
    padding: 10px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
a {
    text-decoration: none;
    color: #e7eb0b;
}
a:hover {
    color: #f50909;
}
.content {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px;
    margin: 20px;
    box-sizing: border-box;
    justify-content: center;
}
.card {
    width: calc(25% - 20px);
    height: 500px;
    background-color: #f5f5f5;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
    margin: 0px;
}
img {
    width: 90%;
    height: 50%;
}
h2 {
    font-size: 18px;
    font-weight: bold;
}
p {
    font-size: 16px;
}
button {
    background-color: #0beb34;
    border: none;
}
button:hover {
    background-color: #1509f5;
}
.sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #2b2b2b;
    box-shadow: 0px 4px 8px rgba(0,0,0,0.3);
    box-sizing: border-box;
}
.sub-menu a {
    color: #eaff00;
    padding: 10px;
    border: 2px dashed #ddff00;
    font-size: 14px;
    width: 100%;
    box-sizing: border-box;
}
.sub-menu a:hover {
    background-color: #706f6f;
    color: rgb(255, 0, 0);
}
.dropdown:hover .sub-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}