body {
    width: 1200px;
    margin: 0 auto;
}

header {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    padding-bottom: 40px;
}

header img {
    width: 170px;
}

a {
    text-decoration: none;
    color: rgb(58, 34, 137);
}

a:hover{
    text-decoration: dotted;
    color: rgb(0, 255, 242);
}

nav {
    display: flex;
    gap: 70px;
    justify-content: flex-end;
}

.all{
    text-align: center;
    border: none;
    display: flex;
    gap: 30px;
    justify-content: space-between;

}

div{
    border: 2px solid;
    border-radius: 5px;
    padding: 15px 20px;
}

img{
    width: 200px;
}

.all p{
    color: red;
}

.div2{
    background-color: black;
}

.h3,.b2{
    color: white;
}

.b3,.b2,.b1{
    display: block;
    padding-bottom: 15px;
}

p{
    margin: 0;
}