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

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!