进展和我想做的事情应该在这里明确:
https://codepen.io/RautSamir/pen/RjzEKY
在办公室下,我需要将子对象显示在正下方,并且希望宽度与父级相同。
代码:
<div class="navItem" style="display:inline">
<button class="dropbtn"> Home </button>
</div>
<div class="dropdown" style="display:inline">
<button onclick="myFunction()" class="dropbtn">Offices</button>
<div id="myDropdown" class="dropdown-content">
<a href="#home">Regional</a>
<a href="#about">Global</a>
<a href="#contact">Local</a>
</div>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Who we are</button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Contact </button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn" id="searchBox"> Search </button>
</div>
答案 0 :(得分:2)
所做的更改:
Codepen:https://codepen.io/anon/pen/YEodjR
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
// Close the dropdown if the user clicks outside of it
window.onclick = function(event) {
if (!event.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
.dropbtn {
background-color: gray;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
width: 19.5%;
}
.dropbtn:hover,
.dropbtn:focus {
background-color: black;
text-style: bold;
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
left: 0;
background-color: #f9f9f9;
width: 98%;
overflow: auto;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown a:hover {
background-color: #f1f1f1
}
.show {
display: block;
}
<div class="navItem" style="display:inline">
<button class="dropbtn"> Home </button>
</div>
<div class="navItem dropdown" style="display:inline">
<button onclick="myFunction()" class="dropbtn">Offices</button>
<div id="myDropdown" class="dropdown-content">
<a href="#home">Regional</a>
<a href="#about">Global</a>
<a href="#contact">Local</a>
</div>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Who we are</button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Contact </button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn" id="searchBox"> Search </button>
</div>
答案 1 :(得分:0)
将left
位置定义为零(相对于它的父级,而不是窗口)。
要使其宽度与其父级相同,请使用right: 0
。
您会注意到4px的差异,这是因为父级的内联块。你可以通过将正确的位置设置为4px来解决这个问题。
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
// Close the dropdown if the user clicks outside of it
window.onclick = function(event) {
if (!event.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
.dropbtn {
background-color: gray;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
width: 19.5%;
}
.dropbtn:hover,
.dropbtn:focus {
background-color: black;
/*invalid
text-style: bold;*/
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
overflow: auto;
left: 0;
right: 4px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown a:hover {
background-color: #f1f1f1
}
.show {
display: block;
}
<div class="navItem" style="display:inline">
<button class="dropbtn"> Home </button>
</div>
<div class="dropdown" style="display:inline">
<button onclick="myFunction()" class="dropbtn">Offices</button>
<div id="myDropdown" class="dropdown-content">
<a href="#home">Regional</a>
<a href="#about">Global</a>
<a href="#contact">Local</a>
</div>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Who we are</button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn"> Contact </button>
</div>
<div class="navItem" style="display:inline">
<button class="dropbtn" id="searchBox"> Search </button>
</div>
答案 2 :(得分:0)
1)您已将父项设置为显示为内联,以便所有内容彼此对齐。
2)将其更改为内联块,您将看到下拉线。 我建议您查看显示类型,并了解它们各自的行为方式。那时候,它对你来说应该变得更有用了
3)然后需要移除按钮上的宽度,以便不切断按钮。而是在父项上设置宽度,并将按钮和下拉宽度设置为100%。然后他们会把父母带到全宽。
应该这样做。