main.css

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Verdana, Arial, Helvetica, sans-serif;
}

.header {
  display: block;
  background-color: #E7E8EA;
  width: 100%;
  height: 85px;
}
.header img {
  max-height: 100%;
  max-width: 95%;
}

.items {
  margin-top: 45px;
  margin-left: 20px;
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
  -webkit-box-align: start;
          align-items: flex-start;
  max-width: 850px;
}
.items .item {
  margin-left: 50px;
  display: -webkit-box;
  display: flex;
  width: 360px;
  padding-top: 10px;
  margin-bottom: 10px;
  border-top: #000 dotted 1px;
  text-decoration: none;
  color: #000;
}
.items .item:nth-child(1), .items .item:nth-child(2) {
  border-top: none;
}
.items .item img {
  width: 75px;
}
.items .item .content {
  margin-left: 8px;
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
          flex-direction: column;
  font-size: 0.7rem;
  max-width: 280px;
}
.items .item .content h4 {
  font-weight: bold;
  font-size: 1.1em;
  color: #990000;
  margin-bottom: 5px;
}

.footer {
  border-bottom: #990000 solid 2px;
  border-bottom-width: 2px;
  margin-top: 65px;
  width: 100%;
}

@media only screen and (max-width: 500px) {
  .items {
    margin-left: 0;
    margin-top: 10px;
  }
  .items .item {
    margin-left: 5vw;
    width: 90vw;
  }
  .items .item:nth-child(2) {
    border-top: #000 dotted 1px;
  }

  .footer {
    margin-top: 10px;
  }
}