Keeping green horizontal lines at 2px value-CodePudding

If I want to keep the green horizontal lines at 2px value, how do I do that in the code?

Here is a snippet I provided of the code where I am trying to keep the green horizontal lines at 2px value.

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  --color-a: blue;
  --color-b: black;
  --color-c: red;
  --color-d: black;

  background-size: 165px 165px;
  background-image:
    linear-gradient(var(--color-a) 5px, #0000 5px),
    linear-gradient(90deg, var(--color-a) 5px, #0000 5px),

    linear-gradient(var(--color-b) 10px, #0000 10px 160px, var(--color-b) 160px),
    linear-gradient(90deg, var(--color-b) 10px, #0000 10px 160px, var(--color-b) 160px),

    linear-gradient(var(--color-c) 15px, #0000 15px 155px, var(--color-c) 155px),
    linear-gradient(90deg, var(--color-c) 15px, #0000 15px 155px, var(--color-c) 155px),

    linear-gradient(var(--color-d) 20px, #0000 20px 150px, var(--color-d) 150px),
    linear-gradient(90deg, var(--color-d) 20px, #0000 20px 150px, var(--color-d) 150px),

    linear-gradient(var(--color-a) 25px, #0000 25px 145px, var(--color-a) 145px),
    linear-gradient(90deg, var(--color-a) 25px, #0000 25px 145px, var(--color-a) 145px),

    linear-gradient(var(--color-b) 30px, #0000 30px 140px, var(--color-b) 140px),
    linear-gradient(90deg, var(--color-b) 30px, #0000 30px 140px, var(--color-b) 140px),

    linear-gradient(var(--color-c) 35px, #0000 35px 135px, var(--color-c) 135px),
    linear-gradient(90deg, var(--color-c) 35px, #0000 35px 135px, var(--color-c) 135px),

    linear-gradient(var(--color-d) 40px, #0000 40px 130px, var(--color-d) 130px),
    linear-gradient(90deg, var(--color-d) 40px, #0000 40px 130px, var(--color-d) 130px),

    linear-gradient(var(--color-a) 45px, #0000 45px 125px, var(--color-a) 125px),
    linear-gradient(90deg, var(--color-a) 45px, #0000 45px 125px, var(--color-a) 125px),

    linear-gradient(var(--color-b) 50px, #0000 50px 120px, var(--color-b) 120px),
    linear-gradient(90deg, var(--color-b) 50px, #0000 50px 120px, var(--color-b) 120px),

    linear-gradient(var(--color-c) 55px, #0000 55px 115px, var(--color-c) 115px),
    linear-gradient(90deg, var(--color-c) 55px, #0000 55px 115px, var(--color-c) 115px),

    linear-gradient(var(--color-d) 60px, #0000 60px 110px, var(--color-d) 110px),
    linear-gradient(90deg, var(--color-d) 60px, #0000 60px 110px, var(--color-d) 110px),

    linear-gradient(var(--color-a) 65px, #0000 65px 105px, var(--color-a) 105px),
    linear-gradient(90deg, var(--color-a) 65px, #0000 65px 105px, var(--color-a) 105px),

    linear-gradient(var(--color-b) 70px, #0000 70px 100px, var(--color-b) 100px),
    linear-gradient(90deg, var(--color-b)70px, #0000 70px 100px, var(--color-b) 100px),

    linear-gradient(var(--color-c) 75px, #0000 75px 95px, var(--color-c) 95px),
    linear-gradient(90deg, var(--color-c) 75px, #0000 75px 95px, var(--color-c) 95px),

    linear-gradient(var(--color-d) 80px, #0000 80px 90px, var(--color-d) 90px),
    linear-gradient(90deg, var(--color-d) 80px, #0000 80px 90px, var(--color-d) 90px),

    linear-gradient(var(--color-a), var(--color-a));
}

.outer {
  display: flex;
  min-height: 100vh;
  align-content: center;
}

.ratio-keeper {
  position: relative;
  height: 0;
  padding-top: 56.25%;
  margin: auto;
  overflow: hidden;
  border: 1px solid #333;
}

.curtain {
  flex: 1 0 0;
  margin: auto;
  max-width: 641px;
  box-shadow: inset 0 -2px 0px 0px #0a0a0a;
  border: 10px solid #000;
  border-radius: 3.2px;
  border-color: #000 #101010 #000 #101010;
  background-image: linear-gradient(45deg,
      transparent,
      transparent 7px,
      rgb(113, 121, 126) 7px,
      rgb(113, 121, 126) 7.5px,
      transparent 7.5px,
      transparent 10px),
    linear-gradient(-45deg,
      transparent,
      transparent 7px,
      rgb(113, 121, 126) 7px,
      rgb(113, 121, 126) 7.5px,
      transparent 7.5px,
      transparent 10px);
  background-size: 10px 10px;
  filter: drop-shadow(0 0 5px #000);
}


.fence {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent 0, transparent 20%, green 20%, green 20.556%, transparent 20.556%, transparent 30%, green 30%, green 30.556%, transparent 30.556%, transparent 40%, green 40%, green 40.556%, transparent 40.556%, transparent 50%, green 50%, green 50.556%, transparent 50.556%, transparent 60%, green 60%, green 60.556%, transparent 60.556%, transparent 70%, green 70%, green 70.556%, transparent 70.556%, transparent 80%, green 80%, green 80.556%, transparent 80.556%, transparent 100%);
  background-size: 177.778% 100%;
}

.fan svg {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  width: 70%;
  height: 70%;
  animation: fan-spin 8s linear;
}

@keyframes fan-spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.cross::before,
.cross::after {
  content: "";
  background: red;
}

.cross::before

/*horizontal*/
  {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  /*width: 100%;*/
  height: 2.8%;
  /*height: 10px;*/
}

.cross::after

/*vertical*/
  {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  /*width: 10px;*/
  width: 1.5%;
  /*height: 100%;*/
}

 <div >
   <div >
     <div >
       <div ></div>

       <div >
         <svg xmlns="http://www.w3.org/2000/svg" width="70%" height="70%" viewBox="76 130 381 381">
           <path fill="#000100" stroke="#000" d="m166.3352 168.6294c5.5396 2.4448 45.2339 54.394 72.7499 91.0151-9.1901-44.8757-21.7959-109.0279-19.9558-114.796 4.1462-12.9949 33.7039-13.5172 41.5845-13.7579 7.8827-.2415 37.4165-1.5221 42.3488 11.1948 2.1872 5.6436-6.4773 70.4506-12.9142 115.8007 25.2309-38.2323 61.6818-92.5089 67.0612-95.2865 12.119-6.2568 33.3898 14.2749 39.1337 19.6768 5.7424 5.402 27.5341 25.3815 22.0294 37.859-2.4441 5.5389-54.3954 45.2354-91.0172 72.7506 44.8757-9.1901 109.0293-21.7959 114.7974-19.9559 12.9927 4.1442 13.5193 33.7032 13.7586 41.5838.2422 7.8819 1.5221 37.4165-11.192 42.3473-5.6471 2.1894-70.4541-6.4765-115.8049-12.9127 38.2323 25.2323 92.5081 61.6783 95.2871 67.0605 6.2581 12.1175-14.2742 33.3877-19.6776 39.133-5.4027 5.7432-25.3815 27.5341-37.8563 22.0279-5.5396-2.4434-45.2361-54.3961-72.7534-91.0143 9.1901 44.8757 21.7952 109.0287 19.9551 114.7953-4.1434 12.9934-33.7026 13.5157-41.5852 13.7586-7.8799.24-37.4165 1.5221-42.3431-11.1936-2.1887-5.6464 6.4779-70.4541 12.9133-115.8071-25.2323 38.2323-61.6824 92.5124-67.0639 95.2908-12.1169 6.256-33.3891-14.2728-39.1337-19.6754-5.7432-5.4027-27.5313-25.383-22.0251-37.8578 2.4434-5.5396 54.394-45.2339 91.0136-72.7526-44.8764 9.1908-109.0266 21.7944-114.7967 19.9566-12.9934-4.1434-13.5171-33.7025-13.7586-41.5852-.2407-7.8806-1.5221-37.4165 11.1963-42.346 5.6443-2.1879 70.4498 6.4752 115.8 12.9121-38.233-25.2316-92.5081-61.6783-95.2865-67.0612-6.256-12.1169 14.2748-33.3913 19.6768-39.1337 5.4006-5.7438 25.3794-27.5333 37.8584-22.0272z" /></svg>

       </div>
       <div ></div>

     </div>
   </div>
 </div>

CodePudding user response：

The total height of fence is approximately -> 360.56px. So, 0.6% of gap between one transparent zone to the next from top to bottom, will give one green line of 2px approximate width. You can adjust number of lines as 100% /(number of lines) to set transparent zone width.

 .fence {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent 0%, transparent 12.5%, green,
  transparent 13.1%, transparent 25.6%, green , 
  transparent 26.2%, transparent 38.7%, green,
  transparent 39.3%, transparent 51.8%,green, 
  transparent 52.4%, transparent 64.5%, green, 
  transparent 65.5%, transparent 78%, green, 
  transparent 78.6%, transparent 91.1%, green , 
  transparent 91.7%, transparent 104.2%,green); 
  background-size: 100% 100%; 

 }

One green horizontal line is located centrally behind the red horizontal line.