styles.css

* {
  box-sizing: border-box;
}

body {
  background-color: #5faa43;
  display: flex;
  flex-direction: column;
  text-align: center;
  align-content: center;
  height: 100%;
  margin: 0;
  padding-bottom: 50px;
}

button {
  color: #fff;
  background-color: #1e561e;
  cursor: pointer;
  border-radius: 5px;
  font-size: 12px;
  padding: 5px 12px;
  margin: 10px auto;
  border: none;
}

form {
  background-color: #1e561e;
  color: whitesmoke;
  padding: 10px;
  margin: 0;
}

.btn-box {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin: 10px 20px;
  padding: 0;
}

.upload-form {
  text-align: center;
  margin: auto 0;
}

.upload-sample-btn {
  margin: auto 0;
}

.box {
  background-color: lightgreen;
  margin: 20px 20px;
  border: 2px solid #000;
}

.trail-rows {
  display: grid;
  grid-template-columns: 3fr repeat(5, 1fr);
}

.trails-list-head {
  background-color: #363115;
  color: #fff;
  border-bottom: 2px solid #000;
}

.trails-list-head div {
  border-left: 2px solid #000;
  padding: 5px;
}

.trail {
  border-bottom: 1px solid #000;
}

.trail div {
  border-left: 1px solid #000;
  display: flex;
  flex-direction: row;
  align-items: center;
  align-content: center;
  justify-content: center;
}

.trail-title {
  position: relative;
}

.delete {
  background-color: #363115;
  color: #fff;
  padding: 5px;
  border: 2px solid #000;
  border-radius: 25%;
  position: absolute;
  left: 5px;
}

.trail input {
  width: 100%;
  height: 100%;
  border: none;
  text-align: center;
  padding: 1em;
}

.trail-total {
  padding: 3px 0;
  border-top: 1px solid #000;
  background: whitesmoke;
}