修復懸停展開元素

Question

我不知道如何解決這個問題：在'a'元素懸停時，div放大，另一個'a'移動。

感謝您的幫助

https://jsfiddle.net/0r2v2qyp/

這裏的html：

<a id="btn_agency" class="btn_presentation">Agenzia</a> 
<a id="btn_student" class="btn_presentation">Studente</a> 
<a id="btn_prof" class="btn_presentation">Docente</a> 
<a id="btn_admin" class="btn_presentation">Segreteria</a> 

和CSS：

.btn_presentation { 
    float: left; 
    margin: 10px; 
    color: royalblue; 
    font-size: 20px; 
    position: relative; 
    letter-spacing: 0; 
    text-transform: uppercase; 
    transition: all .2s ease-out; 
} 

.btn_presentation:after { 
    content: ''; 
    position: relative; 
    display: block; 
    margin: 0 auto; 
    width: 0; 
    height: 0; 
    background: red; 
    transition: all .2s ease-out; 
} 

.btn_presentation:hover { 
    letter-spacing: 5px; 
    transition: all .3s ease-in; 
} 

.btn_presentation:hover:after { 
    width: 100%; 
    height: 2px; 
    transition: all .2s ease-in-out; 
} 

Answer 1

爲了能夠動畫字母間距，你必須給div的寬度固定足以彌補擴展後的文本。

div { 
 
    display: inline-block; 
 
    margin: 10px; 
 
    width: 120px; 
 
} 
 

 
.btn_presentation { 
 
    display: inline-block; 
 
    color: royalblue; 
 
    font-size: 20px; 
 
    position: relative; 
 
    letter-spacing: 0; 
 
    text-transform: uppercase; 
 
    transition: all .2s ease-out; 
 
} 
 

 
.btn_presentation:after { 
 
    content: ''; 
 
    position: relative; 
 
    display: block; 
 
    margin: 0 auto; 
 
    width: 0; 
 
    height: 0; 
 
    background: red; 
 
    transition: all .2s ease-out; 
 
} 
 

 
.btn_presentation:hover { 
 
    letter-spacing: 5px; 
 
    transition: all .3s ease-in; 
 
} 
 

 
.btn_presentation:hover:after { 
 
    width: 100%; 
 
    height: 2px; 
 
    transition: all .2s ease-in-out; 
 
}

<div> 
 
    <a id="btn_agency" class="btn_presentation">Agenzia</a> 
 
</div> 
 
<div> 
 
    <a id="btn_student" class="btn_presentation">Studente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_prof" class="btn_presentation">Docente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_admin" class="btn_presentation">Segreteria</a> 
 
</div>

---

的選項可以替代地使用到它的規模transform

div { 
 
    display: inline-block; 
 
    margin: 10px; 
 
} 
 

 
.btn_presentation { 
 
    display: inline-block; 
 
    color: royalblue; 
 
    font-size: 20px; 
 
    position: relative; 
 
    letter-spacing: 0; 
 
    text-transform: uppercase; 
 
    transition: transform .2s ease-out; 
 
} 
 

 
.btn_presentation:after { 
 
    content: ''; 
 
    position: relative; 
 
    display: block; 
 
    margin: 0 auto; 
 
    width: 0; 
 
    height: 2px; 
 
    background: red; 
 
    transition: width .2s ease-out; 
 
} 
 

 
.btn_presentation:hover { 
 
    transform: scale(1.2); 
 
    transition: transform .3s ease-in; 
 
} 
 

 
.btn_presentation:hover:after { 
 
    width: 100%; 
 
    transition: width .2s ease-in-out; 
 
}

<div> 
 
    <a id="btn_agency" class="btn_presentation">Agenzia</a> 
 
</div> 
 
<div> 
 
    <a id="btn_student" class="btn_presentation">Studente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_prof" class="btn_presentation">Docente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_admin" class="btn_presentation">Segreteria</a> 
 
</div>

---

更新基於評論

這一段話只有一側方式

div { 
 
    display: inline-block; 
 
    margin: 10px; 
 
} 
 

 
.btn_presentation { 
 
    display: inline-block; 
 
    color: royalblue; 
 
    font-size: 20px; 
 
    position: relative; 
 
    letter-spacing: 0; 
 
    text-transform: uppercase; 
 
    transition: transform .2s ease-out; 
 
} 
 

 
.btn_presentation:after { 
 
    content: ''; 
 
    position: relative; 
 
    display: block; 
 
    margin: 0 auto; 
 
    width: 0; 
 
    height: 2px; 
 
    background: red; 
 
    transition: width .2s ease-out; 
 
} 
 

 
.btn_presentation:hover { 
 
    transform: scaleX(1.2); 
 
    transition: transform .3s ease-in; 
 
} 
 

 
.btn_presentation:hover:after { 
 
    width: 100%; 
 
    transition: width .2s ease-in-out; 
 
}

<div> 
 
    <a id="btn_agency" class="btn_presentation">Agenzia</a> 
 
</div> 
 
<div> 
 
    <a id="btn_student" class="btn_presentation">Studente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_prof" class="btn_presentation">Docente</a> 
 
</div> 
 
<div> 
 
    <a id="btn_admin" class="btn_presentation">Segreteria</a> 
 
</div>