* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Times New Roman', Times, serif, sans-serif;
    font-size: 16px;
    background-size: cover;
}

a { 
    text-decoration:none; 
    color:black; 
  } 
   
a:hover{ 
    text-decoration:none;
} 

header {
    width: 100%;
    padding: 5px 30px;
    height: 70px;
    position: sticky;
    display: flex;
    font-weight: 0;
    background: rgba(230, 230, 230, 0.5);
    top: 0;
    border: 0 0 80px;
}

header a img {
    height: 60px;
    padding: 0 30px;
}

header > ul {
    width: 70%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

header > ul > a {
    margin: 20px;
    text-align: center;
}

header > ul > a:hover {
    background-color: aliceblue;
    border-bottom: 1px black solid;
}

.banery {
    width: 80%;
    margin: 40px auto 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.banery img {
    margin: 30px;
    max-height: 80px;
}