我在開始時承認:這是我第一次嘗試HTML/CSS編碼。所以請原諒我的代碼的混亂。掉線消失並且不能居中按鈕
我有兩個問題:1.當我將瀏覽器窗口縮小到足以看到滾動條時,我的三個下拉菜單消失。 2.我試圖將我的按鈕居中(查找資源),但無法弄清楚。我嘗試過自動調整左右邊距,我嘗試了文本對齊方式,但是它弄亂了我的三個框(其寬度爲200px)的位置。
感謝您提供任何幫助!
HTML:
<div id="resource-wrapper">
<div id="content">
<p class="resource-p">Welcome to Our Resource Center.</p>
<p class="resource-p">How may we help you?</p>
</div>
<div id=buttons-div>
<div id=select>
<select class="dropdown" name="field_related_brands_nid">
<option value="All" selected="selected">Any</option>
<option value="2511">Sample</option>
</select>
<select class="dropdown-2" name="field_related_technology_nid">
<option value="All" selected="selected">Any</option>
<option value="444">Sample</option>
</select>
<select class="dropdown-3" name="field_resource_type_value_many_to_one">
<option value="All" selected="selected">Any</option>
<option value="multimedia">Sample</option>
</select>
</div>
<div id=buttons>
<img src="Images/Buttons1.jpg" class="resource-image">
<img src="Images/Buttons2.jpg" class="resource-image">
<img src="Images/buttons3.jpg" class="resource-image">
</div>
<button type="submit" class="resource-p1">Find Resources</button>
</div>
</div>
CSS:
#resource-wrapper {
width: 850px;
margin: 0 auto;}
#content {
background-color: #669bcf;
padding: 1px;
width: 100%;}
.resource-p {
text-align: center;
font-size: 30px;
font-family: sans-serif;
color: white;
line-height: 15px}
#buttons-div {
position: relative;
width: 850px;}
#select {
position: fixed;
margin-top: 214px;
width: 850px;}
.dropdown {
width: 160px;
margin-left: 78px;}
.dropdown-2 {
width: 125px;
margin-left: 115px;}
.dropdown-3 {
width: 95px;
margin-left: 148px;}
.resource-image {
margin: 50px 0 0 58px;}
.resource-p1 {
padding: 16px 18px 13px 18px;
margin: 20px;
text-align: center;
font-size: 21px;
font-family: sans-serif;
color: white;
font-weight: bold;
background-color: #669bcf;
border-style: solid;
border-width: 1px 1px 3px 1px;
border-color: #d7e4f4;
border-radius: 5px;}
'位置:fixed'上'#選擇'這就是爲什麼當調整大小時不顯示 – kei