Untitled

body {
  background-image: linear-gradient(to bottom, #9dd5e0, #bdc1dc);
  height: 100vh;
}

nav {
  background-color: #288080;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-around;
}

nav a {
  text-decoration: none;
  color: white;
}

#boxed {
  width: 500px;
  height: 400px;
  border: 1px solid transparent;
  background-image: linear-gradient(to bottom, #aad8e1, #cccede);
  position: relative;
  top: 70px;
  left: 200px;
  border-radius: 7px;
  box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
}

#boxed form {
  position: relative;
  top: 150px;
  left: 100px;
}
#boxed form input {
  width: 200px;
  padding: 7px;
  border: 1px solid aliceblue;
  border-radius: 7px;
}
#boxed form select {
  width: 80px;
  padding: 7px;
  border: 1px solid aliceblue;
  border-radius: 7px;
}

#boxed button {
  position: relative;
  top: 50px;
  left: 30px;
  width: 250px;
  background-color: #4caf50;
  color: white;
  border: 0px;
  border-radius: 8px;
  padding: 10px;
}
table {
  border: 1px solid aliceblue;
  position: relative;
  left: 900px;
  top: -350px;
  border-collapse: collapse;
}
table thead {
  background-color: #4caf50;
  color: white;
}

table thead td {
  padding: 15px 25px;
  font-weight: bold;
}
table td {
  padding: 5px;
  text-align: center;
  width: 70px;
}
.btn1 {
  border-radius: 5px;
  padding: 5px;
}

.btn2 {
  background-color: red;
  color: white;
  border-radius: 5px;
  padding: 5px;
}

.medium {
  background-color: yellow;
}

.high {
  background-color: red;
}