我正在处理的表单存在两个问题。问题一是我无法将表单放在页面中心。第二个问题是我的提交按钮不会在表单内部居中。
nls(mpg ~ wt^a + disp^b, data=mtcars, start=list(a=3.5, b=0.1), algorithm="port",
lower=c(3,0), upper=c(5,0.25))
Nonlinear regression model
model: mpg ~ wt^a + disp^b
data: mtcars
a b
3 0
residual sum-of-squares: 78781
Algorithm "port", convergence message: relative convergence (4)
fieldset {
display: block;
margin: 0 auto;
border: 1px solid rgb(233, 69, 0);
width: 40%;
}
legend {
background-color: rgb(233, 69, 0);
color: white;
padding: 3px 0px;
text-indent: 5px;
width: 100%;
}
label {
clear: left;
display: block;
float: left;
font-size: 0.9em;
margin: 7px 4% 7px 5px;
width: 40%;
}
input {
display: block;
font-size: 0.9em;
margin: 7px 0px;
width: 50%;
}
textarea {
display: block;
font-size: 0.9em;
float: left;
height: 150px;
margin: 10px 0px;
width: 600%;
}
form p {
text-align: center;
}
input[type="submit"] {
display: block;
float: none;
height: 40px;
width: 200px;
}
input:focus,
select:focus,
textarea:focus {
background-color: rgb(220, 255, 220);
}
input:focus:valid {
background-color: rgb(220, 255, 220) url("go.png") bottom right no-repeat;
-o-background-size: contain;
-moz-background-size: contain;
-webkit-background-size: contain;
background-size: contain;
}
input:focus:invalid {
background-color: rgb(255, 232, 233) url("stop.png") bottom right no-repeat;
-o-background-size: contain;
-moz-background-size: contain;
-webkit-background-size: contain;
background-size: contain;
}
答案 0 :(得分:1)
您不能在字段集中指定两次保证金:
margin: 0 auto;
border: 1px solid rgb(233, 69, 0);
margin: 10px 0px 10px 5%; <--- Bad
你应该在字段集上有margin: 0 auto;
,并且字段集中的所有控件都应该属于应用了其他边距的div。
编辑:这是字段集下半部分的hack,以使其以预期的方式运行:
<fieldset id="personal">
<legend>Personal Information</legend>
<label for="name">Name: *</label>
<input type="text" name="name" id="name" size="40">
<br>
<label for="eMail">E-mail Address: *</label>
<input type="text" name="eMail" id="eMail">
<br>
<label for="favBeer">Favorite Beer Style:</label>
<select name="favBeer" id="favBeer">
<option value="IPA">IPA</option>
<option value="Saison">Saison</option>
<option value="Porter">Porter</option>
<option value="Pilsner">Pilsner</option>
<option value="Hefeweizen">Hefeweizen</option>
<option value="Stout">Stout</option>
<option value="Other">Other</option>
</select>
<br>
<label for="comments">Additional Information:</label>
<textarea name="comments" id="comments" style="float: left; margin: 0 auto; width: 50%" rows="5"></textarea>
<div class="button" style="margin: 0 auto; width: 200px;display: block;">
<input type="submit" value="Sign Me Up">
</div>
</fieldset>
答案 1 :(得分:1)
你不能在任何地方关闭最后两个<label>
。正确的代码是:
<label for="comments">Additional Information:
<label>
<textarea name="comments" id="comments" cols="55" rows="5></textarea>
</label>
</label>
<div class="button">
<input type="submit" value="Sign Me Up" />
</div>
</fieldset>
您需要编辑css以使按钮位于clear
的底部,并使按钮居中:
.button { /* */
clear: left; /* NEW */
} /* */
input[type="submit"] {
display: block;
float: none;
height: 40px;
width: 200px;
margin: 0 auto; /* NEW */
}