body form {
  display: flex;
  flex-direction: column;
  width: 300px;
  border-radius: 10px;
  padding: 20px;
  margin: auto;
  box-shadow: 11px 9px 18px -1px rgba(0, 0, 0, 0.75);
}
body form label {
  margin-block: 30px 10px;
}
body form input {
  height: 30px;
  border: 0;
  background-color: #e5eef5;
}
body form input:focus {
  outline: none;
}
body form button {
  margin-block: 20px;
  border: 0;
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
  color: white;
  background-color: #ff6346;
}
body form select {
  /* styling */
  background-color: white;
  border: thin solid #ff6346;
  border-radius: 4px;
  display: inline-block;
  line-height: 1.5em;
  padding: 0.5em 3.5em 0.5em 1em;
  margin: 0;
  box-sizing: border-box;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, blue 50%), linear-gradient(135deg, blue 50%, transparent 50%), linear-gradient(to right, skyblue, skyblue);
  background-position: calc(100% - 20px) calc(1em + 2px), calc(100% - 15px) calc(1em + 2px), 100% 0;
  background-size: 5px 5px, 5px 5px, 2.5em 2.5em;
  background-repeat: no-repeat;
  background-image: linear-gradient(45deg, white 50%, transparent 50%), linear-gradient(135deg, transparent 50%, white 50%), linear-gradient(to right, gray, gray);
  background-position: calc(100% - 15px) 1em, calc(100% - 20px) 1em, 100% 0;
  background-size: 5px 5px, 5px 5px, 2.5em 2.5em;
  background-repeat: no-repeat;
  border-color: grey;
  outline: 0;
}
body form select select:-moz-focusring {
  color: transparent;
  text-shadow: 0 0 0 #000;
}

/* 
  <form onsubmit="event.preventDefault(); onSubmit();">
    <label for="x-value">X value:</label>
    <input type="number" id="x-value" required>
    <label for="y-value">Y value:</label>
    <input type="number" id="y-value" required>
    <label for="line-number">Line number:</label>
    <select id="line-number">
      <option value="1">Line 1</option>
      <option value="2">Line 2</option>
    </select>
    <button type="submit">Add point</button>
  </form>
  *//*# sourceMappingURL=style.css.map */