自动垂直翻转后的文本中心

时间：2017-11-21 17:34:50

标签： javascript css

我刚开始PHP开发。我在屏幕上有多个文本，我想在文本翻转后取屏幕的文本中心。我先尝试谷歌，所以我得到了CSS代码。因为我是新人，所以无法使其有效。

如果错误的问题，请告诉我，我可以将其删除。

提前致谢。

我的代码可以向您解释更详细的信息。

＆＃13;
＆＃13; 
/*Vertical Flip*/
.verticalFlip{
    display: inline;
    text-indent: 8px;
}
.verticalFlip span{
    animation: vertical 12.5s linear infinite 0s;
    -ms-animation: vertical 12.5s linear infinite 0s;
    -webkit-animation: vertical 12.5s linear infinite 0s;
    color: #00abe9;
    opacity: 0;
    overflow: hidden;
    position: absolute;
}
.verticalFlip span:nth-child(2){
    animation-delay: 2.5s;
    -ms-animation-delay: 2.5s;
    -webkit-animation-delay: 2.5s;
}
.verticalFlip span:nth-child(3){
    animation-delay: 5s;
    -ms-animation-delay: 5s;
    -webkit-animation-delay: 5s;
}
.verticalFlip span:nth-child(4){
    animation-delay: 7.5s;
    -ms-animation-delay: 7.5s;
    -webkit-animation-delay: 7.5s;
}
.verticalFlip span:nth-child(5){
    animation-delay: 10s;
    -ms-animation-delay: 10s;
    -webkit-animation-delay: 10s;
}

/*Vertical Flip Animation*/
@-moz-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -moz-transform: rotateX(180deg); }
    10% { opacity: 1; -moz-transform: translateY(0px); }
    25% { opacity: 1; -moz-transform: translateY(0px); }
    30% { opacity: 0; -moz-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0;}
}
@-webkit-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -webkit-transform: rotateX(180deg); }
    10% { opacity: 1; -webkit-transform: translateY(0px); }
    25% { opacity: 1; -webkit-transform: translateY(0px); }
    30% { opacity: 0; -webkit-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0; }
}
@-ms-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -ms-transform: rotateX(180deg); }
    10% { opacity: 1; -ms-transform: translateY(0px); }
    25% { opacity: 1; -ms-transform: translateY(0px); }
    30% { opacity: 0; -ms-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0; }
}

.bgimg{
    position: relative;
    text-align: center;
    color: white;
}

.imgcentered {
    width: 100%;
    position: absolute;
    /*top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);*/
}

.sentence{
    font-size: 75px;
    color: black;
    text-transform: uppercase;
}
＆＃13; 
<div class="bgimg">
    <div class="imgcentered">
        <h2 class="sentence">WE ARE<div class="verticalFlip">
                <span>INDIAN</span>
                <span>Perfection</span>
                <span>Trustworthy</span>
                <span>Responsive</span>
                <span>Supportive</span>
            </div>
        </h2>
    </div>
</div>
＆＃13;
＆＃13;
＆＃13;

2 个答案:

答案 0 :(得分：0)

您的问题与盒子模型有关。你展示这些单词的方式是通过淡入淡出不透明的方式，但它们仍占用空间。因此，您已将自己的位置设置为absolute。如果它是绝对的，它就不能在框中添加任何额外的宽度，因此CSS的默认居中不会起作用。但是，如果你采取绝对禁用，那么就无法将它们全部放在一起，因为你无法在display: none上进行动画制作。

我建议取消position: absolute而不是依赖CSS来做延迟/计时。而是添加一些带有setInterval的简单JS，它将在每个时间间隔上将一个类（例如active）添加到列表中的下一个范围，从而将类从其他范围中删除。然后在非活动的那些上设置display none，在活动的那个上设置display: inline-block。

无论哪种方式，您都需要使用javascript动态设置左侧位置，或使用javascript进行循环。我不相信只有纯CSS才能做到这一点。

答案 1 :(得分：0)

/*Vertical Flip*/
.verticalFlip{
    display: inline;
    text-indent: 8px;
}
.verticalFlip span{
    animation: vertical 12.5s linear infinite 0s;
    -ms-animation: vertical 12.5s linear infinite 0s;
    -webkit-animation: vertical 12.5s linear infinite 0s;
    color: #00abe9;
    opacity: 0;
    overflow: hidden;
    position: absolute;
}
.verticalFlip span:nth-child(2){
    animation-delay: 2.5s;
    -ms-animation-delay: 2.5s;
    -webkit-animation-delay: 2.5s;
}
.verticalFlip span:nth-child(3){
    animation-delay: 5s;
    -ms-animation-delay: 5s;
    -webkit-animation-delay: 5s;
}
.verticalFlip span:nth-child(4){
    animation-delay: 7.5s;
    -ms-animation-delay: 7.5s;
    -webkit-animation-delay: 7.5s;
}
.verticalFlip span:nth-child(5){
    animation-delay: 10s;
    -ms-animation-delay: 10s;
    -webkit-animation-delay: 10s;
}
.verticalFlip span:nth-child(6){
    animation-delay: 12.5s;
    -ms-animation-delay: 12.5s;
    -webkit-animation-delay: 12.5s;
}

.verticalFlip span:nth-child(7){
    animation-delay: 15s;
    -ms-animation-delay: 15s;
    -webkit-animation-delay: 15s;
}


/*Vertical Flip Animation*/
@-moz-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -moz-transform: rotateX(180deg); }
    10% { opacity: 1; -moz-transform: translateY(0px); }
    25% { opacity: 1; -moz-transform: translateY(0px); }
    30% { opacity: 0; -moz-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0;}
}
@-webkit-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -webkit-transform: rotateX(180deg); }
    10% { opacity: 1; -webkit-transform: translateY(0px); }
    25% { opacity: 1; -webkit-transform: translateY(0px); }
    30% { opacity: 0; -webkit-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0; }
}
@-ms-keyframes vertical{
    0% { opacity: 0; }
    5% { opacity: 0; -ms-transform: rotateX(180deg); }
    10% { opacity: 1; -ms-transform: translateY(0px); }
    25% { opacity: 1; -ms-transform: translateY(0px); }
    30% { opacity: 0; -ms-transform: translateY(0px); }
    80% { opacity: 0; }
    100% { opacity: 0; }
}

.bgimg{
    position: relative;
    text-align: center;
    color: white;
}

.imgcentered {
    width: 100%;
    position: absolute;
    /*top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);*/
}

.sentence{
    font-size: 75px;
    color: black;
    text-transform: uppercase;
}
<div class="bgimg">
    <div class="imgcentered">
        <h2 class="sentence">WE ARE<div class="verticalFlip">
                <span>INDIAN</span>
                <span>Perfection</span>
                <span>Trustworthy</span>
                <span>Responsive</span>
                <span>Supportive</span>
                <span>Responsive</span>
                <span>Supportive</span>
            </div>
        </h2>
    </div>
</div>

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