:root {
    --main-color: #22ff00;
  }

body {
    background-color: black;
    color: var(--main-color);
    font-family: Helvetica, Arial, Sans-Serif;
}
.content {
    margin-top: 1em;
    padding-top: 1em;
    padding-left: 4em;
}

a:visited, a {
    color: var(--main-color);
}

ul{
    list-style: none;
}
ul h3{
    padding-bottom: -5px;
}
li{
    padding-top: 5px;
}

img{
    border-radius: 5px;
    max-width: 8%;
}

@media only screen and (max-width: 600px)  {
    img{
        max-width: 15%;
    }
    .content{
        padding-left: 1em;
    }
}