I have a visualforce page but when I moved to lightning experience automatic a horizontal scroll bar is adding to this page which is a embedded in lightning record page.

So here I am trying to remove this scroll bar by overriding the CSS but its not working

In the above image I want to disable the overflow so that its removing the scroll bar 

after removing the overflow in browser inspect it seems to be perfect. but here I need to override this into my page.
My code

<apex:page standardController="Account">
<style>
   oneAlohaPage .conten {
   overflow: hidden;
}
</style>
<div id="InnternalDiv" style="height: 2000px; width: 500px;">
    <apex:Form>
            <apex:pageBlock>
                <apex:pageBlockSection columns="2">
                    <apex:outputLabel value="First one " />
                    <apex:outputLink target="_blank"
                        value="https://www.google.com/maps/d/viewer?mid=1b6zZey5tKiiv6UP3O5xac1AN8I0">https://www.google.com/maps/d/viewer?mid=1b6zZey5tKiiv6UP3O5xac1AN8I0 </apex:outputLink>
                    <apex:outputLabel value="First two " />
                    <apex:outputLink target="_blank"
                        value="https://www.google.com/maps/d/viewer?mid=1kNPIg_2jXtCNRsN_7VcEtrhDUfI">https://www.google.com/maps/d/viewer?mid=1kNPIg_2jXtCNRsN_7VcEtrhDUfI </apex:outputLink>
                </apex:pageBlockSection>
            </apex:pageBlock>           
    </apex:Form>
</div>

 

I have a visualforce page but when I moved to lightning experience automatic a horizontal scroll bar is adding to this page which is a embedded in lightning record page.

So here I am trying to remove this scroll bar by overriding the CSS but its not working

In the above image I want to disable the overflow so that its removing the scroll bar 

after removing the overflow in browser inspect it seems to be perfect. but here I need to override this into my page.
My code

<apex:page standardController="Account">
<style>
   oneAlohaPage .conten {
   overflow: hidden;
}
</style>
<div id="InnternalDiv" style="height: 2000px; width: 500px;">
    <apex:Form>
            <apex:pageBlock>
                <apex:pageBlockSection columns="2">
                    <apex:outputLabel value="First one " />
                    <apex:outputLink target="_blank"
                        value="https://www.google.com/maps/d/viewer?mid=1b6zZey5tKiiv6UP3O5xac1AN8I0">https://www.google.com/maps/d/viewer?mid=1b6zZey5tKiiv6UP3O5xac1AN8I0 </apex:outputLink>
                    <apex:outputLabel value="First two " />
                    <apex:outputLink target="_blank"
                        value="https://www.google.com/maps/d/viewer?mid=1kNPIg_2jXtCNRsN_7VcEtrhDUfI">https://www.google.com/maps/d/viewer?mid=1kNPIg_2jXtCNRsN_7VcEtrhDUfI </apex:outputLink>
                </apex:pageBlockSection>
            </apex:pageBlock>           
    </apex:Form>
</div>