悬停和页脚不会覆盖整个对象

Question

我有两个问题，所以我只想在一篇文章中问他们。我的悬停不会覆盖整个物体。如您所见：http://st358373.cmd16c.cmi.hanze.nl/epw/index.php＆lt;白色部分不包括整部电影海报。我不知道如何解决这个问题。也许这是一个简单的解决方案，但我似乎无法找到它。

其次，我的页脚不是100％宽度。我也不知道如何解决这个问题。我希望你们能帮助我。

<center><table width="600" border="0" cellpadding="0" cellspacing="5"><tbody align="center">

<div><tr><td><div style="width: 200px; height:296px; margin-top: 50px">
<div class="image-hover">
    <img src="images/thor.jpg" width="200px" height="296px"/>
   <span class="desc"><div class="filmtitle">Thor: Ragnarök</div>
       <div style="font-size:8px; text-transform:uppercase; color:#000;">
<div class="black"><div class="filmdiscription"><b>SUMMARY: </b> Thor is imprisoned on the other side of the universe without his mighty hammer and finds himself in a race against time to get back to Asgard to stop Ragnarok, the destruction of his homeworld and the end of Asgardian civilization, at the hands of an all-powerful new threat, the ruthless Hela. But first he must survive a deadly gladiatorial contest that pits him against his former ally and fellow Avenger the Incredible Hulk!<br><br>
<b>Genre: </b><br><br><center> <!--Genre ophalen uit de Database-->
    </span>
</div></div>
</div></div></td>

CSS：

#title {
 background-color: black;
    color: #FFFFFF;
    font-family: Raleway;
    font-size: 9px;
    height: 50px;
    letter-spacing: 5px;
    line-height: 55px;
    padding-bottom: 5px;
    text-transform: uppercase;
    width: 1019px;
    margin-top: 20px;
   }

.container div {
    display: none;
}

.container:hover div {
    display: block;
}

.filmtitle {
height: 20px;
padding-bottom: 0px;
text-transform: uppercase;
letter-spacing: 3px;
background-color: #000;
color:#fff;
font-size: 7px;
line-height: 20px;
font-family: raleway;
}

.filmdiscription {
font-family: calibri;
font-size: 8px;
letter-spacing: 1px;
line-height: 120%;
text-transform: uppercase;
text-align: justify;
padding: 15px;
color: rgb(255, 255, 255);
vertical-align: middle;
}

.black {
height: 240px;
background-color: #000000;
vertical-align: middle;
margin-bottom: 9px;
padding-top: 19px;
}


.image-hover>span {
    width:180px;
    height:276px;
    display: block;
margin-top: -296px; background-color: white;  padding: 10px;
    -webkit-transition: .4s ease-in-out opacity;
    -moz-transition: .4s ease-in-out opacity;
    -o-transition: .4s ease-in-out opacity;
    transition: .4s ease-in-out opacity;
    opacity: 0;
}
.image-hover:hover>span {
    opacity: 0.9;
}

页脚：

<footer>
    <div class="footertekst">© 2017 Nienke. Rechten voorbehouden.</div>
</footer>

CSS：

html {
    position: relative;
    min-height: 100%;
}

body {
    margin: 0 0 100px; /* bottom = footer height */
    max-width: 100%;
    padding: 0;
}
.footertekst {
    text-align: center;
    color: white;
    font-size: 12px;
    font-weight: 100;
    font-family: 'Roboto', serif;
    letter-spacing: 0.5px;
    margin-top: 50px;

}


footer {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 100px;
    width: 100%;
    font-family: 'Roboto', sans-serif;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#619b28+0,427768+100 */
    background: #619b28; /* Old browsers */
background: -webkit-linear-gradient(left, #619b28 0%, #427768 100%);
background: -o-linear-gradient(left, #619b28 0%, #427768 100%);
background: linear-gradient(to right, #619b28 0%, #427768 100%); /* FF3.6-15 */
 /* Chrome10-25,Safari5.1-6 */
 /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#619b28', endColorstr='#427768',GradientType=1 ); /* IE6-9 */
}

Answer 1

对于您的第一个问题，请对CSS进行以下更改：

.image-hover>span {
    width: 180px;
    height: 274px;
    display: block;
    margin-top: -299px;
    background-color: white;
    padding: 9px 10px 13px 10px;
    -webkit-transition: .4s ease-in-out opacity;
    -moz-transition: .4s ease-in-out opacity;
    -o-transition: .4s ease-in-out opacity;
    transition: .4s ease-in-out opacity;
    opacity: 0;
}

对于第二个问题，它实际上是由您的导航栏引起的。添加最后两行：

ul.topnav {
    list-style-type: none;
    margin: 0;
    top: 0;
    left: 0;
    overflow: hidden;
    font-family: 'Raleway', sans-serif;
    font-weight: 500;
    text-align: center;
    width: 100%;
    position: absolute;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#619b28+0,427768+100 */
    background: #619b28; /* Old browsers */
    background: -webkit-linear-gradient(left, #619b28 0%, #427768 100%);
    background: -o-linear-gradient(left, #619b28 0%, #427768 100%);
    background: linear-gradient(to right, #619b28 0%, #427768 100%); /* FF3.6-15             */
     /* Chrome10-25,Safari5.1-6 */
     /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#619b28', endColorstr='#427768',GradientType=1 ); /* IE6-9 */
    right: 0px;
    padding-left: 0px;
}

这是您的整个css文件，其中包含所做的更改：

@charset "UTF-8";
/* CSS Document */
html {
    position: relative;
    min-height: 100%;
}

body {
    margin: 0 0 100px; /* bottom = footer height */
    max-width: 100%;
    padding: 0;
}

ul.topnav {
    list-style-type: none;
    margin: 0;
    top: 0;
    left: 0;
    overflow: hidden;
    font-family: 'Raleway', sans-serif;
    font-weight: 500;
    text-align: center;
    width: 100%;
    position: absolute;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#619b28+0,427768+100 */
    background: #619b28; /* Old browsers */
    background: -webkit-linear-gradient(left, #619b28 0%, #427768 100%);
    background: -o-linear-gradient(left, #619b28 0%, #427768 100%);
    background: linear-gradient(to right, #619b28 0%, #427768 100%); /* FF3.6-15 */
 /* Chrome10-25,Safari5.1-6 */
 /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#619b28', endColorstr='#427768',GradientType=1 ); /* IE6-9 */
    right: 0px;
    padding-left: 0px;
}

ul.topnav li {display: inline-block;
}


ul.topnav li a {
    display: inline-block;
    color: #ffffff;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    transition: 0.3s;
    font-size: 10px;
    letter-spacing: 2px;
}


ul.topnav li a:hover {background-color: #000000;}


ul.topnav li.icon {display: none;}

body{
color:#666666;
background-color:white;
background-position:top left;
background-repeat: no-repeat;
background-attachment:fixed;
font-family:arial;
font-size:11px;
line-height: 130%;
text-align:justify;
}

a:link, a:active, a:visited{
color: #000;
text-decoration: none;
}

a:hover{
color:#000;
text-decoration: none;
}


#title {
 background-color: black;
    color: #FFFFFF;
    font-family: Raleway;
    font-size: 9px;
    height: 50px;
    letter-spacing: 5px;
    line-height: 55px;
    padding-bottom: 5px;
    text-transform: uppercase;
    width: 1019px;
    margin-top: 20px;
   }

.container div {
    display: none;
}

.container:hover div {
    display: block;
}

.filmtitle {
height: 20px;
padding-bottom: 0px;
text-transform: uppercase;
letter-spacing: 3px;
background-color: #000;
color:#fff;
font-size: 7px;
line-height: 20px;
font-family: raleway;
}

.filmdiscription {
font-family: calibri;
font-size: 8px;
letter-spacing: 1px;
line-height: 120%;
text-transform: uppercase;
text-align: justify;
padding: 15px;
color: rgb(255, 255, 255);
vertical-align: middle;
}

.black {
height: 240px;
background-color: #000000;
vertical-align: middle;
margin-bottom: 9px;
padding-top: 19px;
}


.image-hover>span {
    width: 180px;
    height: 274px;
    display: block;
    margin-top: -299px;
    background-color: white;
    padding: 9px 10px 13px 10px;
    -webkit-transition: .4s ease-in-out opacity;
    -moz-transition: .4s ease-in-out opacity;
    -o-transition: .4s ease-in-out opacity;
    transition: .4s ease-in-out opacity;
    opacity: 0;
}
.image-hover:hover>span {
    opacity: 0.9;
}

h1
{
font-family: 'Oswald', sans-serif;
font-size: 30px;
text-transform: uppercase;
color: #274E89;
}

.contacttext {
    font-family: 'Oswald', sans-serif;
    color: #1F1D1D;
    margin-top: -40px;
}

/* Centres the page (this could be container)*/
.body {
    display:block;
    margin:0 auto;
    width:576px;
    font-family: 'Muli', sans-serif;
    font-size: 16px;
    color: #999;
    position: relative;
    margin-top: 150px;
    padding-bottom: 50px;
}


/* Labels are titles for the text fields. You can use a placeholder instead if you like*/
label 
{
    display:block;
    margin-top:20px;
    letter-spacing:2px;
}

/* Centres the form within the page */
form 
{
    margin:0 auto;
    width:459px;
}

/* Styles the text boxes */
input, textarea, file {
    width:439px;
    height:27px;
    background-color:#efefef;
    border-radius:5px;
    -moz-border-radius:5px;
    -webkit-border-radius:5px;
    border:1px solid #dedede;
    padding:10px;
    margin-top:3px;
    font-size:0.9em;
    color:#3a3a3a;
}

    input:focus, textarea:focus {
        border:1px solid #97d6eb;
    }

/* Styles the text area boxes (message field) */    
textarea 
{
    height:213px;
    background-color: #efefef;
}


/* Styles the submit button */
#submit {
    /* background:url(images/submit.png); */
    width:127px;
    height:48px;
    text-align: center;
    /* text-indent:-9999px; */
    border:none;
    margin-top:20px;
    cursor:pointer;
}

/* Styles the submit hover */   
#submit:hover {
    color:#fff;
    background-color: #216182;
    opacity:0.9;
}

/* Styles the cancel button*/   
#cancel {
    /* background:url(images/cancel.png); */
    width:127px;
    height:28px;
    text-align: center;
    /* text-indent:-9999px; */
    border:none;
    margin-top:20px;
    cursor:pointer;
}

/* Styles the cancel hover */
#cancel:hover {
    color:#fff;
    background-color: #000;
    opacity:0.9;
}

.footertekst {
    text-align: center;
    color: white;
    font-size: 12px;
    font-weight: 100;
    font-family: 'Roboto', serif;
    letter-spacing: 0.5px;
    margin-top: 50px;

}

p.contacttext {
    padding-top: 50px;
    padding-right: 10px;
    font-weight: 100;
    font-size: 12px;
}

#main {
width:960px;
margin:50px auto;
font-family:raleway;
text-align: center;
}
span {
color:red
}
h2 {
background-color: white;
text-align:center;
border-radius:10px 10px 0 0;
margin:-10px -40px;
padding:15px
}
hr {
border:0;
border-bottom:1px solid #ccc;
margin:10px -40px;
margin-bottom:30px
}
#login {
width:600px;
display: inline-block;
border-radius:10px;
font-family:raleway;
border:2px solid #ccc;
padding:10px 40px 25px;
margin-top:70px;
}
input[type=text],input[type=password] {
width:100%;
padding:10px;
margin-top:8px;
border:1px solid #ccc;
padding-left:5px;
font-size:16px;
font-family:raleway
}
input[type=submit] {
width:103.5%;
background-color: #2F8059;
color:#fff;
border:2px solid #2F8059;
padding:10px;
font-size:20px;
cursor:pointer;
border-radius:5px;
margin-bottom:15px;
height: 50px;   

}

 input{
   text-align:center; 
}
label { 
    display: block;
    text-align: center;
    line-height: 150%;
    font-size: .85em;
}

#con {
    margin-top: 50px;
}

.links {
    text-align: center;
    margin-bottom: 20px;
    text-transform: uppercase;
    font-family: 'Raleway', sans-serif;
}

a {
color:#000;
text-decoration:none;
}

a:hover {
text-decoration:underline;
}

footer {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 100px;
    width: 100%;
    font-family: 'Roboto', sans-serif;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#619b28+0,427768+100 */
    background: #619b28; /* Old browsers */
background: -webkit-linear-gradient(left, #619b28 0%, #427768 100%);
background: -o-linear-gradient(left, #619b28 0%, #427768 100%);
background: linear-gradient(to right, #619b28 0%, #427768 100%); /* FF3.6-15 */
 /* Chrome10-25,Safari5.1-6 */
 /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#619b28', endColorstr='#427768',GradientType=1 ); /* IE6-9 */
}