html, body {
  overscroll-behavior: none;
}

body {
  background-color: black;
  font-family: Arial, sans-serif;
}

h1 {
    text-align: center;
    font-size: 7vw;
    color: white;
}

ul {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: center;
    flex-basis: 80%;
}

li {
      flex-basis: 20%;
      display: flex;
      flex-direction: column;
      margin-bottom: 25px;
      align-items: center;
}

span {
        font-size: 1em;
        color: #3f3f3f;
        text-align: center;
}

img {
        margin: 6px;
        border-radius: 4px;
        box-shadow: 1px 1px 2px rgba(0,0,0,.1); 
}

p,a {
        color:white;
        font-weight: bold;
        font-size: 6vw;
}

a.button3 {
        display:inline-block;
        padding:0.3em 1.2em;
        margin:0 0.3em 0.3em 0;
        border-radius:2em;
        box-sizing: border-box;
        text-decoration:none;
        font-weight:300;
        color:#FFFFFF;
        background-color:#4eb5f1;
        text-align:center;
        transition: all 0.2s;
        font-size: 3vw;
}

a.button3:hover {
        background-color:#4095c6;
}

a#startButton {
        background-color: #21ce1b;
}

a#startButton:hover {
        background-color:#2eb74f;
}

a#stopButton {
        background-color: #f01818;
}

a#stopButton:hover {
        background-color:#b72e2e;
}

button.button3 {
        display:inline-block;
        padding:0.3em 1.2em;
        margin:0 0.3em 0.3em 0;
        border-radius:2em;
        box-sizing: border-box;
        text-decoration:none;
        font-weight:300;
        color:#FFFFFF;
        background-color:#4eb5f1;
        text-align:center;
        transition: all 0.2s;
        font-size: 3vw;
}

button.button3:hover {
        background-color:#4095c6;
}

@media only screen and (max-width: 1000px) {
  button.button3 {
        font-size: 6vw;
  }
  a.button3 {
        font-size: 6vw;
  }
  h1 {
        font-size: 10vw;
  }
}

div.layout {
  display:block;
  text-align: center;

}

select {
        display:inline-block;
        padding:0.3em 1.2em;
        margin:0 0.3em 0.3em 0;
        border-radius:2em;
        box-sizing: border-box;
        text-decoration:none;
        font-weight:300;
        color:#FFFFFF;
        background-color:#4eb5f1;
        text-align:center;
        transition: all 0.2s;
        font-size: 3vw;
}

@media only screen and (max-width: 1000px) {
  select {
        font-size: 6vw;
  }
}

input.gallonInput {
        display:inline-block;
        padding:0.3em 1.2em;
        margin:0 0.3em 0.3em 0;
        border-radius:2em;
        box-sizing: border-box;
        text-decoration:none;
        font-weight:300;
        color:#FFFFFF;
        background-color:#4eb5f1;
        text-align:center;
        transition: all 0.2s;
        
        max-width: 200px;
}

@media only screen and (max-width: 1000px) {
  input {
        font-size: 5vw;
  }
}