Question

我正在尝试使用按钮将悬停div class="opa"居中，而无需考虑div class="hello"的高度或宽度，因为模板的大小不同。

我正在尝试left:50% , top 50%, position:absolute;，但我无法实现按钮的中心。

这是我的代码：

.cosa {
    display: none;
    position: absolute;
}
.hello:hover .cosa {
    display: block;
}

.canceled {
    background-color: #3F3736;
    padding: 10px 20px;
    font-size: 15px!important;
    color: #fff;
    margin-left: 280px!important;
    width: 210px;
    margin-top: 25px!important;
    font-weight: 70!important;
}

<div class="hello">
      <div class="opa">
      <span id="cancel" class="pull-right canceled cprev previews cosa" ng-click="editing(); addDataSign();"><button type="button">CHANGE TEMPLATE</button></span></div>
     <div class="tdescrip ng-pristine ng-untouched ng-valid ng-binding" ng-model="opened.HTML" editor="" data-ng-bind-html="opened.template">            <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">        <title>Template signature</title>                <table cellpadding="0" cellspacing="0" border="0" style="font-size:11px; font-family: Arial; line-height: 17px;" width="100%">            <tbody><tr>                <td valign="top" style="background-color:#f6f7f8; padding: 10px; border-right-width:2px; border-right-style: solid; border-right-color:#ff7f00 " width="50%">                    <span style="font-size:13px; color:#29363f; font-weight: bold ">XXXXX</span><br><br>                    XXXXXXXXXX<br>                    mobile: XXXXXXXXXXX<br>                    <span style="color:#009ee0"></span>                </td>                <td valign="top" style="background-color:#d1d7db; padding: 10px; padding-left: 20px" width="50%">                    <span style="font-size:13px; color:#29363f ;font-weight: bold"></span><br><br>                   XXXXXXX<br>                                        <span style="color:#009ee0"></span>                </td>            </tr>            <tr>                <td colspan="2">                    <p style="font-size:8px; font-family:Verdana; color:#959595; line-height: 10px;"></p>                </td>            </tr>        </tbody></table>    </div>
      </div>

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char* rmchr(char *string, char ch)
{ 
    int counter = 0;
    int new_size = 0;
    char corrected_string[100];

    while (string[counter] != '\n' && string[counter] != '\0' && string[counter] != EOF)  {
        if (string[counter] != ch) {
            corrected_string[new_size] = string[counter];
            new_size++;
        }
        counter++;
    }
    char *new_string = (char *)malloc((new_size+1) * sizeof(char));

    for (int j = 0; j <= new_size; j++) {
        new_string[j] = corrected_string[j];
    }
    return new_string;
}

int main(int argc, const char * argv[]) {

    char *s = "The char 'c' will be removed";
    char *new = rmchr(s, 'c');
    printf("%s", new);
    return 0;
}

将中心div保留在其他div中

1 个答案: