body {
    font-family: Tahoma, "Trebuchet MS", sans-serif;
    width: 100%;
    height: 100%;
    padding: 0;
    background-color: #00213b;
    margin: 0;
}

.logo-box {
    width:100%;

}

img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 40%;
  }