How to use pure CSS to achieve the effect of rainbow stripe text (code attached)

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This article brings the content is about how to use pure CSS to achieve the effect of rainbow stripe text (with code), there is a certain reference value, the need for friends can refer to, I hope to help you.

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Source code Download

Https://github.com/comehope/front-end-daily-challenges

Code interpretation

Defines the DOM, contains text in the container, and contains 4 <span> Data-text attribute values for the effects,<span> are the same as the text:

<p class= "Rainbow" >    Web    <span data-text= "web" ></span>    <span data-text= "Web" > </span>    <span data-text= "web" ></span>    <span data-text= "Web" ></span></p >

Center display:

HTML, body {    height:100%;    Display:flex;    Align-items:center;    Justify-content:center;    Background:black;}

Define Text styles:

. Rainbow {    color:white;    font-size:300px;    Text-transform:uppercase;    Font-family:sans-serif;    Font-weight:bold;    Line-height:1em;    Position:relative;}

Add layers with pseudo-elements to create a rainbow effect:

. Rainbow Span::before,.rainbow Span::after {content:attr (data-text);    Position:absolute;    top:0;    left:0; Overflow:hidden;}.    Rainbow Span:nth-child (1):: Before {color:orchid;    Z-index:1; Height:calc (100%-10% * 1);}.    Rainbow Span:nth-child (1):: after {color:mediumpurple;    Z-index:2; Height:calc (100%-10% * 2);}.    Rainbow Span:nth-child (2):: Before {color:deepskyblue;    Z-index:3; Height:calc (100%-10% * 3);}.    Rainbow Span:nth-child (2):: after {Color:cyan;    Z-index:4; Height:calc (100%-10% * 4);}.    Rainbow Span:nth-child (3):: Before {color:mediumspringgreen;    Z-index:5; Height:calc (100%-10% * 5);}.    Rainbow Span:nth-child (3):: after {color:yellow;    Z-index:6; Height:calc (100%-10% * 6);}.    Rainbow Span:nth-child (4):: Before {color:gold;    Z-index:7; Height:calc (100%-10% * 7);}.    Rainbow Span:nth-child (4):: after {color:tomato;    Z-index:8; Height:calc (100%-10% * 8);}

Add animation effects:

. Rainbow Span::before,.rainbow Span::after {    animation:animate 0.8s infinite Alternate;    Filter:opacity (0);} @keyframes Animate {from    {        filter:opacity (0);    }    to {        filter:opacity (1);    }}

Set the delay for the layer to enhance the motion:

. Rainbow Span:nth-child (1):: Before {    Animation-delay:calc (0.8s-0.1s * 1);}. Rainbow Span:nth-child (1):: After {    Animation-delay:calc (0.8s-0.1s * 2);}. Rainbow Span:nth-child (2):: Before {    Animation-delay:calc (0.8s-0.1s * 3);}. Rainbow Span:nth-child (2):: After {    animation-delay:calc (0.8s-0.1s * 4);}. Rainbow Span:nth-child (3):: Before {    Animation-delay:calc (0.8s-0.1s * 5);}. Rainbow Span:nth-child (3):: After {    Animation-delay:calc (0.8s-0.1s * 6);}. Rainbow Span:nth-child (4):: Before {    Animation-delay:calc (0.8s-0.1s * 7);}. Rainbow Span:nth-child (4):: After {    Animation-delay:calc (0.8s-0.1s * 8);}

Finally, set the original text to a transparent color:

. Rainbow {    color:transparent;}

Done!

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