如何使用css mix-blend-mode在svg图像上方使文本变为黑白色

Question

我有一个文本和svg图像，我想将文本设置为黑色，但是svg图像上方的部分则使用白色。因此图像将是蒙版。这是我的尝试

.bg{
  position:absolute;
  top:0;
  z-index:-1;
}
.p{
  color:black;
  mix-blend-mode: difference;
}

<p class='p'>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolorum adipisci dolorem nostrum maxime incidunt quod quibusdam sint porro harum culpa voluptatum in libero eligendi quas, quisquam rerum eum ea! Expedita repellat quidem exercitationem excepturi voluptate consectetur aspernatur in temporibus eaque explicabo sunt id est suscipit, numquam ut nesciunt quaerat veniam placeat debitis ipsa provident itaque. Earum quas odio sequi odit atque ea explicabo. Itaque dignissimos cumque natus magni, ex, labore nihil, aperiam perferendis similique tempore, omnis impedit. Est qui eius ipsam assumenda nesciunt nam optio quam, ipsa eaque ut cum, dolore quas ea quisquam consectetur non quia aliquid explicabo! Aspernatur?
</p>

<svg class='bg' width="610px" height="650" viewBox="0 0 610 610" version="1.1" xmlns="http://www.w3.org/2000/svg"
     style="float: right;">
    <defs>
        <linearGradient x1="93.3400314%" y1="5.7888905%" x2="12.9002674%" y2="84.419059%" id="linearGradient-2">
            <stop stop-color="#1A2980" offset="0%"></stop>
            <stop stop-color="#26D0CE" offset="100%"></stop>
        </linearGradient>
    </defs>
    <g id="Page-2" fill="none" fill-rule="evenodd">
        <g id="left-first" transform="translate(-1.000000, 0.000000)" fill="url(#linearGradient-2)">
            <path d="M369.229,1.87 C331.97,-6.66 292.354,16.4 254.072,22.87 C217.142,29.11 172.133,19.8 138.434,40.94 C104.735,62.08 93.543,106.67 71.866,137.21 C49.391,168.87 11.396,194.51 2.866,231.77 C-5.664,269.03 17.402,308.65 23.866,346.93 C30.105,383.86 20.795,428.87 41.942,462.57 C63.089,496.27 107.67,507.46 138.209,529.14 C169.868,551.61 195.509,589.61 232.77,598.14 C270.031,606.67 309.645,583.6 347.929,577.14 C384.857,570.9 429.866,580.21 463.566,559.06 C497.266,537.91 508.456,493.34 530.136,462.79 C552.606,431.13 590.606,405.49 599.126,368.23 C607.646,330.97 584.596,291.35 578.126,253.07 C571.886,216.14 581.196,171.13 560.056,137.43 C538.916,103.73 494.326,92.54 463.786,70.86 C432.13,48.39 406.488,10.39 369.229,1.87 Z"
                  id="Shape_2_copy" transform="rotate(133.788 300 300)"></path>
            <animateTransform attributeName="transform" attributeType="XML" type="rotate" from="0 300 300"
                              to="360 300 300" dur="35s" repeatCount="indefinite"></animateTransform>
        </g>
    </g>

</svg>

这是我很感兴趣的东西：

Answer 1

为了使用mix-blend-mode: difference;，我将SVG元素用作背景图像。为了获得用作背景图像的代码，我使用Yoksel的SVG encoder。

但是图像上的文本不会是白色。

  

mix-blend-mode CSS属性设置元素的内容应如何与元素的父元素和元素的背景相融合。

文本的颜色取决于背景图像的颜色。我希望这会有所帮助。

.wrap{width:100vw; height:800px;background: url("data:image/svg+xml,%3Csvg class='bg' width='610px' height='650' viewBox='0 0 610 610' version='1.1' xmlns='http://www.w3.org/2000/svg' style='float: right;'%3E%3Cdefs%3E%3ClinearGradient x1='93.3400314%25' y1='5.7888905%25' x2='12.9002674%25' y2='84.419059%25' id='linearGradient-2'%3E%3Cstop stop-color='%231A2980' offset='0%25'%3E%3C/stop%3E%3Cstop stop-color='%2326D0CE' offset='100%25'%3E%3C/stop%3E%3C/linearGradient%3E%3C/defs%3E%3Cg id='Page-2' fill='none' fill-rule='evenodd'%3E%3Cg id='left-first' transform='translate(-1.000000, 0.000000)' fill='url(%23linearGradient-2)'%3E%3Cpath d='M369.229,1.87 C331.97,-6.66 292.354,16.4 254.072,22.87 C217.142,29.11 172.133,19.8 138.434,40.94 C104.735,62.08 93.543,106.67 71.866,137.21 C49.391,168.87 11.396,194.51 2.866,231.77 C-5.664,269.03 17.402,308.65 23.866,346.93 C30.105,383.86 20.795,428.87 41.942,462.57 C63.089,496.27 107.67,507.46 138.209,529.14 C169.868,551.61 195.509,589.61 232.77,598.14 C270.031,606.67 309.645,583.6 347.929,577.14 C384.857,570.9 429.866,580.21 463.566,559.06 C497.266,537.91 508.456,493.34 530.136,462.79 C552.606,431.13 590.606,405.49 599.126,368.23 C607.646,330.97 584.596,291.35 578.126,253.07 C571.886,216.14 581.196,171.13 560.056,137.43 C538.916,103.73 494.326,92.54 463.786,70.86 C432.13,48.39 406.488,10.39 369.229,1.87 Z' id='Shape_2_copy' transform='rotate(133.788 300 300)'%3E%3C/path%3E%3CanimateTransform attributeName='transform' attributeType='XML' type='rotate' from='0 300 300' to='360 300 300' dur='35s' repeatCount='indefinite'%3E%3C/animateTransform%3E%3C/g%3E%3C/g%3E%3C/svg%3E"),white;

background-position:center top; 
background-repeat:no-repeat;}

p{font-size:3em;
  color: white;
  mix-blend-mode: difference;
}

<div class="wrap">
  <p class='p'>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolorum adipisci dolorem nostrum maxime incidunt quod quibusdam sint porro harum culpa voluptatum in libero eligendi quas, quisquam rerum eum ea! Expedita repellat quidem exercitationem excepturi voluptate consectetur aspernatur in temporibus eaque explicabo sunt id est suscipit, numquam ut nesciunt quaerat veniam placeat debitis ipsa provident itaque. Earum quas odio sequi odit atque ea explicabo. Itaque dignissimos cumque natus magni, ex, labore nihil, aperiam perferendis similique tempore, omnis impedit. Est qui eius ipsam assumenda nesciunt nam optio quam, ipsa eaque ut cum, dolore quas ea quisquam consectetur non quia aliquid explicabo! Aspernatur?</p>
</div>

Answer 2

我认为您要混色混合模式...

.bg {
    position: absolute;
    top: 0;
    z-index: -1;
    right: 0;
    left: 0;
    margin: auto;
    background-color: white;
}.p {
    margin: 0 auto;
    padding: 10px;
    width: 50%;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    mix-blend-mode: color-burn;
}

<p class='p'>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolorum adipisci dolorem nostrum maxime incidunt quod quibusdam sint porro harum culpa voluptatum in libero eligendi quas, quisquam rerum eum ea! Expedita repellat quidem exercitationem excepturi voluptate consectetur aspernatur in temporibus eaque explicabo sunt id est suscipit, numquam ut nesciunt quaerat veniam placeat debitis ipsa provident itaque. Earum quas odio sequi odit atque ea explicabo. Itaque dignissimos cumque natus magni, ex, labore nihil, aperiam perferendis similique tempore, omnis impedit. Est qui eius ipsam assumenda nesciunt nam optio quam, ipsa eaque ut cum, dolore quas ea quisquam consectetur non quia aliquid explicabo! Aspernatur?
</p>

<svg class='bg' width="610px" height="650" viewBox="0 0 610 610" version="1.1" xmlns="http://www.w3.org/2000/svg"
     style="float: right;">
    <defs>
        <linearGradient x1="93.3400314%" y1="5.7888905%" x2="12.9002674%" y2="84.419059%" id="linearGradient-2">
            <stop stop-color="#1A2980" offset="0%"></stop>
            <stop stop-color="#26D0CE" offset="100%"></stop>
        </linearGradient>
    </defs>
    <g id="Page-2" fill="none" fill-rule="evenodd">
        <g id="left-first" transform="translate(-1.000000, 0.000000)" fill="url(#linearGradient-2)">
            <path d="M369.229,1.87 C331.97,-6.66 292.354,16.4 254.072,22.87 C217.142,29.11 172.133,19.8 138.434,40.94 C104.735,62.08 93.543,106.67 71.866,137.21 C49.391,168.87 11.396,194.51 2.866,231.77 C-5.664,269.03 17.402,308.65 23.866,346.93 C30.105,383.86 20.795,428.87 41.942,462.57 C63.089,496.27 107.67,507.46 138.209,529.14 C169.868,551.61 195.509,589.61 232.77,598.14 C270.031,606.67 309.645,583.6 347.929,577.14 C384.857,570.9 429.866,580.21 463.566,559.06 C497.266,537.91 508.456,493.34 530.136,462.79 C552.606,431.13 590.606,405.49 599.126,368.23 C607.646,330.97 584.596,291.35 578.126,253.07 C571.886,216.14 581.196,171.13 560.056,137.43 C538.916,103.73 494.326,92.54 463.786,70.86 C432.13,48.39 406.488,10.39 369.229,1.87 Z"
                  id="Shape_2_copy" transform="rotate(133.788 300 300)"></path>
            <animateTransform attributeName="transform" attributeType="XML" type="rotate" from="0 300 300"
                              to="360 300 300" dur="35s" repeatCount="indefinite"></animateTransform>
        </g>
    </g>

</svg>