html, body {
    margin: 0;
    background-color: #5c5c5c05;
}

.title {
    text-align: center;
    font-size: 40px;
}
.box {
    box-shadow: 3px 3px 5px 0 #00000026;
    border-radius: 7px;
    width: calc(100%-40px);
    padding: 20px;
    margin-bottom: 13px;
}
.ex {
    background-color: white;
}
.box_main {
    padding: 7px;
}
.ex_img {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    
}
.ex_img > img {
    max-width: 400px;
    
}
.document {
    background-color: white;
}
@media (max-width: 700px) {
    img {
        max-width: 100%!important;
    }
}