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Css – Slanted stripes on a page

I would like some full sized slanted stripes on the page; that’s all.

This is what I did so far:

html, body {
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}
body {
    display: flex;
    margin: 0;
    padding: 0;
}

.flag-strip {
    position: absolute;
    width: 100vw;
    height: 15px;
    left: 0;
    transform: rotate(-10deg);
    z-index: 1;
}

.flag-strip.red {
    background-color: #D90012;
    top: 9%;
}

.flag-strip.blue {
    background-color: #0033A0;
    top: 10.5%;
}

.flag-strip.orange {
    background-color: #F2A800;
    top: 12%;
}

@media (max-width: 878px) {
    .flag-strip.red {
        top: 11%;
    }

    .flag-strip.blue {
        top: 12.5%;
    }

    .flag-strip.orange {
        top: 14%;
    }
}
<div class="flag-strip red"></div>
<div class="flag-strip blue"></div>
<div class="flag-strip orange"></div>

But the user shouldn’t have a horizontal scroll bar, and the stripes should be really full sized — there shouldn’t be any endings visible on the page.

How can I make it work like that?

Tags:

2

Answers


  1. 0

    For the visible endings at either side, you could make the .flag-strip extra-wide (like 120vw) and instead of starting at left:0 you could start it 20px off the view (i.e. -20px) – see below:

    .flag-strip {
    position: absolute;
    width: 120vw;
    height: 15px;
    left: -20px;
    transform: rotate(-10deg);
    z-index: 1;
}

    if you do not want any scrollbars, you can also make the .body hide the overflow in both directions (not just X)

     body {
    overflow: hidden;
    margin: 0;
    padding: 0;
 }

    See runnable demo:

    html,
body {
  overflow: hidden;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  margin: 0;
  padding: 0;
}

.flag-strip {
  position: absolute;
  width: 120vw;
  height: 15px;
  left: -20px;
  transform: rotate(-10deg);
  z-index: 1;
}

.flag-strip.red {
  background-color: #D90012;
  top: 9%;
}

.flag-strip.blue {
  background-color: #0033A0;
  top: 10.5%;
}

.flag-strip.orange {
  background-color: #F2A800;
  top: 12%;
}

@media (max-width: 878px) {
  .flag-strip.red {
    top: 11%;
  }

  .flag-strip.blue {
    top: 12.5%;
  }

  .flag-strip.orange {
    top: 14%;
  }
}
    <div class="flag-strip red"></div>
<div class="flag-strip blue"></div>
<div class="flag-strip orange"></div>
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  2. 0

    You can do this entirely in CSS with linear-gradient as the background.

    html, body {
    margin: 0;
    padding: 0;
    height: 100vh;
}
.flag-bg {
    height: 100%;
    
    --flag-a: 10deg;
    --flag-h: 30px;
    --flag-pos: 20%;
    --flag-color1: #D90012;
    --flag-color2: #0033A0;
    --flag-color3: #F2A800;
    --flag-antialias: 1px;
    background-image: linear-gradient(calc(180deg - var(--flag-a)),
      transparent        calc(var(--flag-pos) - var(--flag-antialias)),
      var(--flag-color1) calc(var(--flag-pos)),
      var(--flag-color1) calc(var(--flag-pos) + var(--flag-h) / 3 - var(--flag-antialias)),
      var(--flag-color2) calc(var(--flag-pos) + var(--flag-h) / 3),
      var(--flag-color2) calc(var(--flag-pos) + 2 * var(--flag-h) / 3 - var(--flag-antialias)),
      var(--flag-color3) calc(var(--flag-pos) + 2 * var(--flag-h) / 3),
      var(--flag-color3) calc(var(--flag-pos) + var(--flag-h) - var(--flag-antialias)),
      transparent        calc(var(--flag-pos) + var(--flag-h))
    );
    background-repeat: no-repeat;
}
    <div class="flag-bg"></div>
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