How to add Hover to Bootstrap icons

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I would like to know how to add Hover to Bootstrap icons.

So far my code is like this:

<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="rgba(194, 56, 58, 1)" class="bi bi-book hover-icon" viewBox="0 0 16 16">
 <path d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"/>
</svg>

After a few tries I only managed to get here with CSS:

.hover-icon:hover {
   background-image: url("data:image/svg+xml,<svg viewBox='0 0 16 16' fill='black' xmlns='http://www.w3.org/2000/svg'><path d='M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z'/></svg>") ;
 }

The result was this before and after the hover:

Antes do hover

Depois do hover

The intention was to paint black after the Hover as the CSS code itself proposes, but the impression is that it is only adding the same svg (painted black) over it.

twitter-bootstrap bootstrap-4

2 answers

3


Could do in a way, that would affect all the svg’s of the page, change the property fill every time a hover.

Example:

svg:hover {
  fill: rgba(0,0,0,1); /* preenche com a cor "black" */
}
<!DOCTYPE html>
<html lang="pt-br">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Projeto</title>
  </head>
  <body>
    <main>
      <svg
        xmlns="http://www.w3.org/2000/svg"
        width="32"
        height="32"
        fill="rgba(194, 56, 58, 1)"
        class="bi bi-book hover-icon"
        viewBox="0 0 16 16"
      >
        <path
          d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"
        />
      </svg>
    </main>
    <footer></footer>
  </body>
</html>

Or for specific sections of the page, changing certain svg according to the section:

.menu > svg:hover {
  fill: rgba(0,0,0,1); /* preenche com a cor "black" para svg's dentro do menu */
}

.body > svg:hover {
  fill: rgb(135, 16, 172); /* preenche com a cor "purple" para svg's fora do menu */
}
<!DOCTYPE html>
<html lang="pt-br">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Projeto</title>
  </head>
  <body>
    <main>
      <div class="menu">
        <svg
          xmlns="http://www.w3.org/2000/svg"
          width="32"
          height="32"
          fill="rgba(194, 56, 58, 1)"
          class="bi bi-book hover-icon"
          viewBox="0 0 16 16"
        >
          <path
            d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"
          />
        </svg>
      </div>
      <div class="body">
        <svg
          xmlns="http://www.w3.org/2000/svg"
          width="32"
          height="32"
          fill="rgba(194, 56, 58, 1)"
          class="bi bi-book hover-icon"
          viewBox="0 0 16 16"
        >
          <path
            d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"
          />
        </svg>
      </div>
    </main>
    <footer></footer>
  </body>
</html>

0

The response of Cmte Cardeal served right!!

I will forward as the code:

<li class="nav-item svg-hover">
      <a class="nav-link mr-2" href="#">
        <svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="rgba(194, 56, 58, 1)" class="bi bi-chat-dots" viewBox="0 0 16 16">
          <path d="M5 8a1 1 0 1 1-2 0 1 1 0 0 1 2 0zm4 0a1 1 0 1 1-2 0 1 1 0 0 1 2 0zm3 1a1 1 0 1 0 0-2 1 1 0 0 0 0 2z"/>
          <path d="M2.165 15.803l.02-.004c1.83-.363 2.948-.842 3.468-1.105A9.06 9.06 0 0 0 8 15c4.418 0 8-3.134 8-7s-3.582-7-8-7-8 3.134-8 7c0 1.76.743 3.37 1.97 4.6a10.437 10.437 0 0 1-.524 2.318l-.003.011a10.722 10.722 0 0 1-.244.637c-.079.186.074.394.273.362a21.673 21.673 0 0 0 .693-.125zm.8-3.108a1 1 0 0 0-.287-.801C1.618 10.83 1 9.468 1 8c0-3.192 3.004-6 7-6s7 2.808 7 6c0 3.193-3.004 6-7 6a8.06 8.06 0 0 1-2.088-.272 1 1 0 0 0-.711.074c-.387.196-1.24.57-2.634.893a10.97 10.97 0 0 0 .398-2z"/>
        </svg>
      </a>
    </li>

I added a class called "svg-Hover" to all the icons I wanted to have the effect of Hover... Ai in CSS looked like this:

.svg-hover svg:hover {
fill:rgba(194, 56, 58, 0.75)
}

The result was this:

Antes do hover

Before the time

Depois do hover

After the time

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