悬停时导航栏项目跳动

Question

当我在导航栏上滚动时，一些（但不是全部）图标跳动，并且文本在过渡过程中看起来很糟糕。谁能告诉我为什么他们会紧张，以及如何在导航栏悬停时很好地进行文本转换？谢谢！！！

我已经包含了代码及其外观。

:root {
    --c1: rgb(251, 176, 64);
    --c1-light: rgb(245, 212, 164);
    --c1-dark: rgb(209, 136, 27);
    --c2: rgb(9, 179, 195);
    --c2-light: rgb(85, 197, 209);
    --c2-dark: rgb(0, 190, 205);

    --f1: Poppins;
    --f2: Poppins;
    --f3: Poppins;
    --button-padding: 2px 10px;
    --input_padding: 2px 6px;
    --table-padding: 2px 5px;
}

html {
    font-size: 62.5%;
}

* {
    margin: 0;
    padding: 0;
    font-family: var(--f1), sans-serif;
    font-size: 1.2rem;
}.main {
    margin-left: 5rem;
    padding: 1rem;
}

.navbar {
    position: fixed;
    background-color: rgb(55, 55, 55);
    transition: width 600ms ease;
    top: 0;
    width: 4rem;
    height: 100vh;
    z-index: 100;
}

.navbar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.nav-item {
    width: 100%;
}

.nav-item:last-child {
    margin-top: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    height: 4rem;
    text-decoration: none;
}

.nav-link:hover {
    background: black;
    color: white;
}

.link-text {
    display: none;
    margin-left: 1rem;
    color: grey;
}

.nav-link svg {
    width: 2rem;
    min-width: 2rem;
    margin: 0 1.1rem;
}

.nav-link i {
    font-size: 2rem;
    margin: 0 auto;
    color: grey;
}

.icon {
    width: 4rem;
    text-align: center;
}

.fa-primary {
    color: var(--c1);
}

.fa-secondary {
    color: var(--c1-light);
}

.logo {
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--c2);
    background: var(--c2);
    font-size: 2rem;
    letter-spacing: 0.1ch;
    width: 100%;
}

.logo svg {
    transform: rotate(0deg);
    transition: 600ms;
}

.logo-text {
    display: inline;
    position: absolute;
    left: -999px;
    transition: 600ms;
}

.navbar:hover .logo svg {
    transform: rotate(-180deg);
}

.navbar:hover {
    width: 16rem;
}

.navbar:hover .link-text {
    display: inline;
}

.navbar:hover .logo svg {
    margin-left: 13rem;
}

.navbar:hover .logo-text {
    left: 0px;
}

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <link
            rel="stylesheet"
            href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css"
            integrity="sha512-+4zCK9k+qNFUR5X+cKL9EIR+ZOhtIloNl9GIKS57V1MyNsYpYcUrUeQc9vNfzsWfV28IaLL3i96P9sdNyeRssA=="
            crossorigin="anonymous"
        />
        <link
            href="https://fonts.googleapis.com/css2?family=Poppins&display=swap"
            rel="stylesheet"
        />
        <title>Style Testing</title>
    </head>
    <body>
        <nav class="navbar">
            <ul class="navbar-nav">
                <li class="logo">
                    <a href="#" class="nav-link">
                        <span class="link-text logo-text">Company Name</span>
                        <svg
                            aria-hidden="true"
                            focusable="false"
                            data-prefix="fad"
                            data-icon="angle-double-right"
                            role="img"
                            xmlns="http://www.w3.org/2000/svg"
                            viewBox="0 0 448 512"
                            class="svg-inline--fa fa-angle-double-right fa-w-14 fa-5x"
                        >
                            <g class="fa-group">
                                <path
                                    fill="currentColor"
                                    d="M224 273L88.37 409a23.78 23.78 0 0 1-33.8 0L32 386.36a23.94 23.94 0 0 1 0-33.89l96.13-96.37L32 159.73a23.94 23.94 0 0 1 0-33.89l22.44-22.79a23.78 23.78 0 0 1 33.8 0L223.88 239a23.94 23.94 0 0 1 .1 34z"
                                    class="fa-secondary"
                                ></path>
                                <path
                                    fill="currentColor"
                                    d="M415.89 273L280.34 409a23.77 23.77 0 0 1-33.79 0L224 386.26a23.94 23.94 0 0 1 0-33.89L320.11 256l-96-96.47a23.94 23.94 0 0 1 0-33.89l22.52-22.59a23.77 23.77 0 0 1 33.79 0L416 239a24 24 0 0 1-.11 34z"
                                    class="fa-primary"
                                ></path>
                            </g>
                        </svg>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-home"></i></span>
                        <span class="link-text">Home</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"
                            ><i
                                style="color: var(--c1)"
                                class="fas fa-gavel"
                            ></i
                        ></span>
                        <span class="link-text">Auctions</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-barcode"></i></span>
                        <span class="link-text">Products</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"
                            ><i class="fas fa-mobile-alt"></i
                        ></span>
                        <span class="link-text">Phones</span>
                    </a>
                </li>

                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-cubes"></i></span>
                        <span class="link-text">Purchases</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-hand-holding-usd"></i
                        ></span>
                        <span class="link-text">Listings</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-box-open"></i
                        ></span>
                        <span class="link-text">Orders</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"> <i class="fab fa-usps"></i></span>
                        <span class="link-text">Shipping</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon c1">
                            <i class="fab fa-paypal"></i
                        ></span>
                        <span class="link-text">PayPal</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-calculator"></i
                        ></span>
                        <span class="link-text">Accounting</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="far fa-newspaper"></i
                        ></span>
                        <span class="link-text">Reports</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i
                                style="color: var(--c2)"
                                class="fas fa-sign-out-alt"
                            ></i
                        ></span>
                        <span class="link-text">Logout</span>
                    </a>
                </li>
            </ul>
        </nav>
        <div class="main">

        </div>
    </body>
</html>

Answer 1

如果你给 .icon 一个 background-color 那么你就能看到问题所在。当 text-align 设置为 center 时，它的 width 不断变化，同时不断尝试居中。这就是它跳跃的原因。我将它的 position 设置为 absolute 所以它不会移动和改变大小。您可以按照我在代码中留下的 css 评论进行更多调查。我也使用了这个Q&A的帮助，你也可以看看。

:root {
    --c1: rgb(251, 176, 64);
    --c1-light: rgb(245, 212, 164);
    --c1-dark: rgb(209, 136, 27);
    --c2: rgb(9, 179, 195);
    --c2-light: rgb(85, 197, 209);
    --c2-dark: rgb(0, 190, 205);

    --f1: Poppins;
    --f2: Poppins;
    --f3: Poppins;
    --button-padding: 2px 10px;
    --input_padding: 2px 6px;
    --table-padding: 2px 5px;
}

html {
    font-size: 62.5%;
}

* {
    margin: 0;
    padding: 0;
    font-family: var(--f1), sans-serif;
    font-size: 1.2rem;
}.main {
    margin-left: 5rem;
    padding: 1rem;
}

.navbar {
    position: fixed;
    background-color: rgb(55, 55, 55);
    transition: width 600ms ease;
    top: 0;
    width: 4rem;
    height: 100vh;
    z-index: 100;
}

.navbar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.nav-item {
    width: 100%;
}

.nav-item:last-child {
    margin-top: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    height: 4rem;
    text-decoration: none;
}

.nav-link:hover {
    background: black;
    color: white;
}

/*Changed the link-text to produce a smooth transition as long as transitions doesn't apply to display property*/

.link-text {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s, opacity 1s ease; 
    margin-left: 4rem; 
    color: grey;
}
/*Added this, so that the company's name doesn't get affected*/
.link-text:first-child {
    margin-left: 1rem;
}
.nav-link svg {
    width: 2rem;
    min-width: 2rem;
    margin: 0 1.1rem;
}

.nav-link i {
    font-size: 2rem;
    margin: 0 auto;
    color: grey;
}

.icon {
    position: absolute; /*fix the jumping icons by positioning them*/
    width: 4rem;
    text-align: center;
}

.fa-primary {
    color: var(--c1);
}

.fa-secondary {
    color: var(--c1-light);
}

.logo {
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--c2);
    background: var(--c2);
    font-size: 2rem;
    letter-spacing: 0.1ch;
    width: 100%;
}

.logo svg {
    transform: rotate(0deg);
    transition: 600ms;
}

.logo-text {
    display: inline;
    position: absolute;
    left: -999px;
    transition: 600ms;
}

.navbar:hover .logo svg {
    transform: rotate(-180deg);
}

.navbar:hover {
    width: 16rem;
}

/*changed this according to the peoperties in .link-text*/
.navbar:hover .link-text {
      visibility: visible;
      opacity: 1;
}

.navbar:hover .logo svg {
    margin-left: 13rem;
}

.navbar:hover .logo-text {
    left: 0px;
}

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <link
            rel="stylesheet"
            href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css"
            integrity="sha512-+4zCK9k+qNFUR5X+cKL9EIR+ZOhtIloNl9GIKS57V1MyNsYpYcUrUeQc9vNfzsWfV28IaLL3i96P9sdNyeRssA=="
            crossorigin="anonymous"
        />
        <link
            href="https://fonts.googleapis.com/css2?family=Poppins&display=swap"
            rel="stylesheet"
        />
        <title>Style Testing</title>
    </head>
    <body>
        <nav class="navbar">
            <ul class="navbar-nav">
                <li class="logo">
                    <a href="#" class="nav-link">
                        <span class="link-text logo-text">Company Name</span>
                        <svg
                            aria-hidden="true"
                            focusable="false"
                            data-prefix="fad"
                            data-icon="angle-double-right"
                            role="img"
                            xmlns="http://www.w3.org/2000/svg"
                            viewBox="0 0 448 512"
                            class="svg-inline--fa fa-angle-double-right fa-w-14 fa-5x"
                        >
                            <g class="fa-group">
                                <path
                                    fill="currentColor"
                                    d="M224 273L88.37 409a23.78 23.78 0 0 1-33.8 0L32 386.36a23.94 23.94 0 0 1 0-33.89l96.13-96.37L32 159.73a23.94 23.94 0 0 1 0-33.89l22.44-22.79a23.78 23.78 0 0 1 33.8 0L223.88 239a23.94 23.94 0 0 1 .1 34z"
                                    class="fa-secondary"
                                ></path>
                                <path
                                    fill="currentColor"
                                    d="M415.89 273L280.34 409a23.77 23.77 0 0 1-33.79 0L224 386.26a23.94 23.94 0 0 1 0-33.89L320.11 256l-96-96.47a23.94 23.94 0 0 1 0-33.89l22.52-22.59a23.77 23.77 0 0 1 33.79 0L416 239a24 24 0 0 1-.11 34z"
                                    class="fa-primary"
                                ></path>
                            </g>
                        </svg>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-home"></i></span>
                        <span class="link-text">Home</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"
                            ><i
                                style="color: var(--c1)"
                                class="fas fa-gavel"
                            ></i
                        ></span>
                        <span class="link-text">Auctions</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-barcode"></i></span>
                        <span class="link-text">Products</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"
                            ><i class="fas fa-mobile-alt"></i
                        ></span>
                        <span class="link-text">Phones</span>
                    </a>
                </li>

                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"><i class="fas fa-cubes"></i></span>
                        <span class="link-text">Purchases</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-hand-holding-usd"></i
                        ></span>
                        <span class="link-text">Listings</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-box-open"></i
                        ></span>
                        <span class="link-text">Orders</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon"> <i class="fab fa-usps"></i></span>
                        <span class="link-text">Shipping</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon c1">
                            <i class="fab fa-paypal"></i
                        ></span>
                        <span class="link-text">PayPal</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="fas fa-calculator"></i
                        ></span>
                        <span class="link-text">Accounting</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i class="far fa-newspaper"></i
                        ></span>
                        <span class="link-text">Reports</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link">
                        <span class="icon">
                            <i
                                style="color: var(--c2)"
                                class="fas fa-sign-out-alt"
                            ></i
                        ></span>
                        <span class="link-text">Logout</span>
                    </a>
                </li>
            </ul>
        </nav>
        <div class="main">

        </div>
    </body>
</html>

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