controls.css

#all-close {
    position: absolute;
    left: -999px;
}
#all-close + label {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
     background: repeating-linear-gradient(
      190deg,
      rgba(255, 0, 0, 0.5) 40px,
      rgba(255, 153, 0, 0.5) 80px,
      rgba(255, 255, 0, 0.5) 120px,
      rgba(0, 255, 0, 0.5) 160px,
      rgba(0, 0, 255, 0.5) 200px,
      rgba(75, 0, 130, 0.5) 240px,
      rgba(238, 130, 238, 0.5) 280px,
      rgba(255, 0, 0, 0.5) 300px
    ), repeating-linear-gradient(
      -190deg,
      rgba(255, 0, 0, 0.5) 30px,
      rgba(255, 153, 0, 0.5) 60px,
      rgba(255, 255, 0, 0.5) 90px,
      rgba(0, 255, 0, 0.5) 120px,
      rgba(0, 0, 255, 0.5) 150px,
      rgba(75, 0, 130, 0.5) 180px,
      rgba(238, 130, 238, 0.5) 210px,
      rgba(255, 0, 0, 0.5) 230px
    ), repeating-linear-gradient(23deg, red 50px, orange 100px, yellow 150px, green
        200px, blue 250px, indigo 300px, violet 350px, red 370px);
}

.menu-input { position: absolute; left: -9999px; }
.menu {
    display: inline-block;
    cursor: pointer;
    width: 15px;
    height: 15px;
    margin: 5px;
}
.menu .bar {
  width: 100%;
  height: 20%;
  background-color: #ccc;
  margin: 20% 0;
  transition: 0.4s;
}
.menu:hover .bar { background-color: #777; }
.menu .bar:nth-child(1) { margin-top: 0; }
.menu-input:checked + .menu .bar:nth-child(1) { transform: translate(0, 0.37em) rotate(-45deg); }
.menu-input:checked + .menu .bar:nth-child(2) { opacity: 0; }
.menu-input:checked + .menu .bar:nth-child(3) { transform: translate(0, -0.37em) rotate(45deg); }
.menu-input + .menu ~ * { display: none; }
.menu-input:checked + .menu ~ * { display: initial; animation: fadeIn 0.5s; }

.settings {
    position: fixed;
    z-index: 3;
    opacity: 0.8;
    background-color: white;
}

.options {
    display: inline-block;
    border: 1px solid #ddd;
    border-radius: 10px;
    position: absolute;
    margin-top: -20px;
    background-color: white;
    z-index: 1;
    opacity: 0.8;
}
.options:has(.menu-input:checked) {
    padding: 0 5px 5px 0;
}
.options .menu {
    scale: 0.5;
    margin: 0;
}
.insert,.delete {
    text-decoration: none;
    color: transparent;
    min-width: 9px;
    display: inline-block;
    border: 1px solid transparent;
    border-radius: 10px;
    line-height: 10px;
    margin: 0 2px;
}
.insert:hover,.delete:hover {
    background-color: white;
}
.insert:before,
.insert:after,
.delete:before {
    background-color: green;
    content: "";
    width: 9px;
    height: 2px;
    display: inline-block;
    position: absolute;
    top: 6px;
}
.delete:before {
    background-color: red;
}
.insert:after {
    transform: rotate(90deg);
    left: 4px;
}
.templates { display: none; }

:checked.menu-input ~ .menu.close {
    display: block;
    position: absolute;
    top: 0px;
    z-index: 2;
}