.main-title {
    font-size: 25px;
    font-weight: bold;
    color: dodgerblue;
    text-align: center;
}

body {
    width: 100%;
}
a {
    text-decoration:none
}
.main-header {
    height: 60px;
    line-height: 60px;
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
}

.main-body {
    width: 100%;
    margin: auto;
    text-align: center;
}

.main-footer {
    height: 80px;
    display: flex;
    flex-wrap: nowrap;
}