* {
  font-family: Arial;
  font-size: 14px;
}

h1 {
  margin-top: 0px;
  text-align: center;
}

body {
  max-height: 100vh;
}
td {
  padding: 5px;
  text-align: center;
  direction: ltr;
}

h2.history-title {
    text-align: center;
    font-weight: normal;
    font-family: "Arial";
    color: #333;
    font-size: 19.5px;
    padding: 0;
    margin: 10px;
}


/* tr:nth-child(4n+3), tr:nth-child(4n+4) {
  background-color: #c9d1d1;
} */

tr:nth-child(even) {
  background-color: #c9d1d1;
}


#content > tr:hover{
  background-color:lightskyblue;
}

table {
  border-spacing: 0px;
  width: 100%;
}

.options {
  max-height: 500px;
  overflow-y: auto;
  margin-top: 15px;
}

.green {
  color: seagreen;
  font-weight: bold;
}

.red {
  color: tomato;
  font-weight: bold;
}

.settings {
  display: flex; flex-direction: row; text-align: center;
  justify-content: space-evenly; flex-wrap: wrap;
}
.settings>div {
  display: flex; flex-direction: column; text-align: center;
  min-width: 15%;
  margin-bottom: 15px;
}

.settings>div>input, .settings>div>select {
  background-color: silver;
  border-radius: 5px;
  border: 0px;
  padding: 5px;
}

.reset-btn{
  cursor: pointer;
}

@media only screen and (max-width: 600px) {
  .settings>div {
    min-width: 40%;
  }
  .options>table>thead>tr>th:nth-child(2), .options>table>thead>tr>th:nth-child(3),
  .options>table>thead>tr>th:nth-child(4), .options>table>thead>tr>th:nth-child(7),
  .options>table>thead>tr>th:nth-child(8), .options>table>thead>tr>th:nth-child(9) {
    display: none;
  }
}