* {
     margin: 0;
     padding: 0;
     box-sizing: border-box
 }

 html {
     min-height: 100%;
 }

 body {
     color: #0d559c;
     font-family: 'PT Sans', sans-serif;
     font-size: 15px;
     line-height: 21px;
 }

 #wrapper {
     max-width: 520px;
     margin: 16px auto;
     border: 1px solid #0d559c;
     background-color: #fff;
     padding: 20px;
     position: relative;
 }

 header {
     display: flex;
     justify-content: space-between;
     align-items: flex-start;
 }

 article {
     padding: 20px 0 0;
 }

 footer {
     position: absolute;
     bottom: 20px;
     right: 20px;
 }

 p {
     margin-top: 20px;
 }

 p:first-of-type {
     margin-top: 0px;
 }

 h1 {
     font-size: 29px;
     line-height: 1.2;
     margin-top: 15px;
 }

 h1 span {
     font-weight: normal;
     font-size: 13px;
 }

 h1 span:nth-of-type(2) {
     display: block;
 }

 img {
     max-width: 100%;
     display: block;
 }

 a {
     color: #0d559c;
     text-decoration: none;
 }

 @media only screen and (max-width:520px) {
     #wrapper {
         border: none;
         margin: 0;
         padding: 16px;
     }

     h1 {
         font-size: 24px;
     }
 }

 @media only screen and (max-width:425px) {
     body {
         text-align: center;
     }

     header {
         flex-direction: column;
         align-items: center;
         gap: 16px
     }

     footer {
         position: static;
         display: flex;
         justify-content: center;
         margin-top: 16px
     } }